Billy (name)
Billy is a given name. A spelling variant is Billie. Notable people with the name include:
- Billy & Louie, British contestant on The Voice UK series 13
- Billy the Artist, American artist and writer
- Billy the Axeman, American suspected serial killer
- Billy The Fist, American bass player, songwriter, producer, actor, film editor, and director
- Billy the Kid (disambiguation), several people
- Billy "The Texan" Longley, Australian convicted murderer
- Billy Abercromby, Scottish footballer
- Billy Abit Joo, Malaysian politician
- Billy Abner Mayaya, Malawian human rights activist, artist, poet, and theologian
- Billy Adair, American ASL player
- Billy Adam, Scottish association footballer
- Billy Adam Calvert, American politician and businessman
- Billy Adams (disambiguation), several people
- Billy Agnew, Scottish footballer
- Billy Al Bengston, American visual artist and sculptor
- Billy Alford, American AFL player
- Billy Allen, English footballer
- Billy Alton, American football coach
- Billy Álvarez, Mexican businessman, footballer, and criminal
- Billy Alvord, American MLB player
- Billy Amick, American MLB player
- Billy Amstell, British jazz reedist
- Billy Anderson (disambiguation), several people
- Billy Andrade, American professional golfer
- Billy Andrews, American NFL player
- Billy Andrews (footballer), Irish international footballer
- Billy Annis, English footballer
- Billy Apple, New Zealand artist
- Billy Arce, Ecuadorian footballer
- Billy Ard, American NFL player
- Billy Argyros, Greek Australian poker player
- Billy Arjan Singh, Indian hunter turned conservationist and author
- Billy Armfield, English professional footballer
- Billy Armstrong (disambiguation), several people
- Billy Arnison, South African professional footballer
- Billy Arnold (disambiguation), several people
- Billy Arnott, Australian VFL player
- Billy Aronson, American playwright and writer
- Billy Ashcroft, English footballer
- Billy Ashley, American MLB player
- Billy Askew, English footballer
- Billy Atherton, English footballer
- Billy Atkins (American football), American NFL and AFL player
- Billy Austin (disambiguation), several people
- Billy Autrey, American NFL player
- Billy Ayre, English footballer
- Billy Baber, American NFL player
- Billy Backus, American professional boxer
- Billy Baggett, American NFL player
- Billy Bailey (disambiguation), several people
- Billy Bainbridge, Australian professional rugby league footballer
- Billy Baird, Canadian PAC, IPHL, NHA, and NHL player
- Billy Baird (footballer), Scottish footballer
- Billy Bairstow, English footballer
- Billy Bajema, American college football and NFL player
- Billy Baker (disambiguation), several people
- Billy Bakker, Dutch field hockey player
- Billy Balbastro, Filipino lawyer and entertainment columnist
- Billy Baldwin (disambiguation), several people
- Billy Bales, English international motorcycle speedway rider
- Billy Ball, English footballer
- Billy Ballew, American businessman; owner of Billy Ballew Motorsports
- Billy Balmer, English footballer
- Billy Bancroft, Welsh international rugby union player and cricketer
- Billy Bancroft (coach), American college football, basketball, and baseball coach
- Billy Bang, American free jazz violinist and composer
- Billy Banks (disambiguation), several people
- Billy Banner, English footballer
- Billy Bannister, English professional footballer
- Billy Barber (disambiguation), several people
- Billy Barbour, Scottish footballer
- Billy Barham, Australian VFL player
- Billy Barker (disambiguation), several people
- Billy Barlow, Canadian ice hockey player
- Billy Barnes (disambiguation), several people
- Billy Barnie, American MLB manager and player
- Billy Baron, American professional basketball player
- Billy Barr (disambiguation), several people
- Billy Barratt, English actor
- Billy Barrett, English footballer
- Billy Barty, American actor and activist
- Billy Baskette, American pianist and composer
- Billy Bassett, English association footballer, director, and club chairman
- Billy Bassett (Welsh footballer), Welsh professional footballer
- Billy Bates (disambiguation), several people
- Billy Batten, English professional rugby league footballer
- Billy Batty, English footballer
- Billy Bauer, American jazz guitarist
- Billy Baulch, American murder victim
- Billy Baum, Puerto Rican Olympic basketball player
- Billy Baumhoff, American soccer player
- Billy Bawlf, Canadian ice hockey player
- Billy Baxter (disambiguation), several people
- Billy Beach, alternate name of James Carter Cathcart, American voice actor, script adaptor, voice director, pianist, and vocalist
- Billy Beal, Canadian sawmill engineer
- Billy Beall, English footballer
- Billy Bean (disambiguation), several people
- Billy Beane, American MLB player and front office executive
- Billy Beasley, American politician
- Billy Beats, English international footballer
- Billy Beattie, Scottish professional rugby league footballer
- Billy Beaumont, English footballer
- Billy Becher, Irish cricketer
- Billy Beck, American clown and character actor
- Billy Beck (musician), American member of funk band Ohio Players
- Billy Beckett, English footballer
- Billy Beckett (Scottish footballer)
- Billy Beechers, English professional footballer
- Billy Beer (footballer), English professional footballer
- Billy Beggs, Australian VFL player
- Billy Behan, Irish footballer and manager
- Billy Beldham, English professional cricketer
- Billy Bell (disambiguation), several people
- Billy Belshaw, English professional rugby league footballer
- Billy Bender, American rower
- Billy Bennett (disambiguation), several people
- Billy Bennington, English hammered dulcimer player
- Billy Benn Perrurle, Alyawarre landscape artist
- Billy Bentham, English professional rugby league footballer
- Billy Benton, English professional footballer
- Billy Benyon, English professional rugby league footballer
- Billy Berg, American jazz club owner
- Billy Bernard, Luxembourgian international footballer
- Billy Berntsson, Swedish footballer
- Billy Berroa, Dominican broadcaster
- Billy Bertram, English professional footballer
- Billy Besson, French competitive sailor
- Billy Best, English professional footballer
- Billy Bestwick, English cricketer
- Billy Betts, English footballer
- Billy Bevan, Australian-born vaudevillian who became an American film actor
- Billy Bevis, English footballer
- Billy Bibby, Welsh member of rock bands Billy Bibby & The Wry Smiles and Catfish and the Bottlemen
- Billy Bibit, Filipino military leader
- Billy Biggar, English professional footballer
- Billy Bigley, American racing driver
- Billy Billett, Australian VFL player
- Billy Bilsland, Scottish professional racing cyclist
- Billy Bingham, Northern Irish international footballer and manager
- Billy Bingham (footballer, born 1990), English professional footballer
- Billy Birch, American minstrel performer
- Billy Bird, British professional boxer
- Billy Birmingham, Australian humorist and sports journalist
- Billy Birrell, Scottish professional footballer
- Billy Bischoff, Australian rugby league footballer
- Billy Bischoff Jr., Australian professional rugby league footballer
- Billy Bishop, Canadian World War I flying ace
- Billy Bisseker, English footballer
- Billy Bitter, American professional lacrosse player
- Billy Bitzer, American cinematographer
- Billy Bizor, American Texas blues harmonicist, singer, and songwriter
- Billy Blackie, Scottish footballer
- Billy Blackman, Australian VFL player
- Billy Blake, English professional footballer
- Billy Blan, English professional rugby league footballer
- Billy Blanco, Brazilian architect, musician, composer, and writer
- Billy Bland (disambiguation), several people
- Billy Blanks, American actor, martial artist, and fitness personality
- Billy Blanks Jr., American fitness personality; son of the above
- Billy Bletcher, American actor
- Billy Block, American musician, journalist, actor, publisher, and television- and radio personality
- Billy Bloomfield, English footballer
- Billy Blue, African-American convict transported to Australia
- Billy Bluelight, English flower vendor and cult figure
- Billy Blunt, English footballer
- Billy Bly, English professional footballer
- Billy Blyth, Scottish footballer
- Billy Blyton, Baron Blyton, British politician
- Billy Boardman, English footballer
- Billy Boat, American open-wheel driver
- Billy Bob, several people
- Billy Bock, American college- and high school baseball coach
- Billy Bodin, English-Welsh professional footballer
- Billy Boles (disambiguation), several people
- Billy Bolger, Australian professional golfer
- Billy Boljevic, Yugoslavian professional footballer
- Billy Bolt, English motorcycle rider
- Billy Bond, Italian musician; member of Argentine supergroup Billy Bond y La Pesada del Rock and Roll
- Billy Bonds, English footballer and manager
- Billy Bones (musician), American member of punk rock band The BillyBones
- Billy Bong, ring name of Josh Abercrombie, American professional wrestler
- Billy Bookout, American football player and coach
- Billy Booth (disambiguation), several people
- Billy Bootle, English footballer
- Billy Borland, Scottish professional footballer
- Billy Boslem, English footballer
- Billy Bostock, Scottish footballer
- Billy Boston, Welsh professional rugby league footballer
- Billy Bottrill, English professional footballer
- Billy Boucher, Canadian NHL player
- Billy Bowden, New Zealand cricket umpire and player
- Billy Bowen, Welsh dual-code rugby union- and professional rugby league footballer
- Billy Bower, English footballer
- Billy Bowers (disambiguation), several people
- Billy Bowes, Scottish professional footballer
- Billy Bowie, Scottish businessman
- Billy Bowlegs (disambiguation), several people
- Billy Bowman Jr., American college football player
- Billy Boy (disambiguation), several people
- Billy Boyce, Australian boxer
- Billy Boyd (disambiguation), several people
- Billy Boyle, Irish film, television, and stage actor and singer
- Billy Boyo, Jamaican reggae artist
- Billy Bradshaw (disambiguation), several people
- Billy Brae, Scottish footballer
- Billy Bragg, English singer, songwriter, musician, author, and political activist
- Billy Branch, American blues harmonica player and singer
- Billy Brawn, English international footballer
- Billy Bray, Cornish preacher
- Billy Breakenridge, American lawman, teamster, railroader, soldier, and author
- Billy Breen, Canadian MHA player
- Billy Bremner (disambiguation), several people
- Billy Brennan, Scottish ice hockey player
- Billy Bretherton, American entomologist, pest control technician, and television presenter of Billy the Exterminator
- Billy Brewer (disambiguation), several people
- Billy Brick, Irish hurler
- Billy Bridgeman, English professional footballer
- Billy Bridges, Canadian ice sledge hockey- and wheelchair basketball player
- Billy Bridgewater, English footballer
- Billy Briggs, American independent musician and songwriter
- Billy Brimblecom, American drummer
- Billy Brimstone, alternate name of Jehst, English rapper and producer
- Billy Briscoe, English footballer
- Billy Briscoe (Australian footballer), Australian VFL player
- Billy Brittain, Australian professional rugby league footballer
- Billy Broadbent, English professional footballer
- Billy Broderick, Irish swimmer
- Billy Bromage, English footballer
- Billy Brooks, American NFL player
- Billy Brooks (footballer), Irish professional footballer
- Billy Broomfield, American politician
- Billy Brown (disambiguation), several people
- Billy Brownless, Australian AFL player
- Billy Bryan, American NFL player
- Billy Bryan (baseball), American MLB player
- Billy Bryan (footballer), English professional footballer
- Billy Bryans, Canadian percussionist, songwriter, music producer, and DJ
- Billy Bryant, English footballer
- Billy Bryk, Canadian actor and filmmaker
- Billy Buchanan, Scottish professional footballer
- Billy Buckner, American MLB pitcher
- Billy Bullock, English flat racing jockey
- Billy Bulmer, English public servant and professional rugby league footballer
- Billy Burch, American-born Canadian NHL player
- Billy Burden, English actor and comedian
- Billy Burke (disambiguation), several people
- Billy Burnet, Scotland international rugby union player
- Billy Burnett, English professional footballer
- Billy Burnette, American guitarist, singer, songwriter, and actor
- Billy Burnikell, English professional football player and manager
- Billy Burns (disambiguation), several people
- Billy Bush, American radio- and television host
- Billy Bush (record producer), American record producer, audio engineer, and mixer
- Billy Butler (disambiguation), several people
- Billy Butlin, South African-born English-Canadian entrepreneur
- Billy Butterfield, American jazz bandleader, trumpeter, flugelhornist, and cornetist
- Billy Byers, American jazz trombonist and arranger
- Billy Byrd, American country- and jazz guitarist and studio musician
- Billy Byrne (disambiguation), several people
- Billy C. Hawkins, American academic administrator and teacher
- Billy C. Sanders, American Navy senior sailor
- Billy C. Wirtz, American blues musician, comedian, and writer
- Billy Cafaro, Argentine rock and roll singer
- Billy Cairns, English footballer
- Billy Caldwell, American part-Scots-Irish and part-Mohawk- or Shawnee fur trader
- Billy Callender, English professional footballer
- Billy Cameron, Canadian NHL player
- Billy Campbell (disambiguation), several people
- Billy Campfield, American NFL player
- Billy Cann, Australian rugby league footballer
- Billy Cannon, American AFL and NFL player
- Billy Cannon Jr., American NFL player; son of the above
- Billy Carden, American stock car racing driver
- Billy Carlson, American racing driver
- Billy Carr, English professional footballer
- Billy Carroll, Canadian NHL player
- Billy Carson (actor), American actor and musician
- Billy Carter, American farmer, businessman, brewer, and politician
- Billy Carter (ice hockey), Canadian NHL player
- Billy Caryll, English comedian
- Billy Caskey, Northern Irish NIFL, EFL, NASL, and MISL player
- Billy Casper, American professional golfer
- Billy Castle, English professional snooker player
- Billy Caulfield, English professional footballer
- Billy Celeski, Macedonian-born Australian footballer
- Billy Cesare, American NFL player
- Billy Chadwick (footballer), English professional footballer
- Billy Chalmers, Scottish association footballer and manager
- Billy Chan, Hong Kong-born Australian medical simulation specialist, educator, and humanitarian
- Billy Chandler, American racing driver
- Billy Chapel, American ice skater
- Billy Chapin, American child actor
- Billy Chapman (footballer), English footballer
- Billy Charlton, English footballer
- Billy Chase, American college football player
- Billy Chemirmir, Kenyan-born American murderer and suspected serial killer
- Billy Chesser, English professional footballer
- Billy Childish, English painter, author, poet, photographer, film maker, singer, and guitarist
- Billy Childs, American composer, jazz pianist, arranger, and conductor
- Billy Chiles, American soccer player
- Billy Chinook, Native American Wasco chief
- Billy Chow, Hong Kong-Canadian professional kickboxer and actor
- Billy Christmas, Canadian ice hockey-, lacrosse-, and football player
- Billy Chung, Hong Kong film director and producer
- Billy Ciancaglini, American defense attorney; candidate in the 2019 Philadelphia mayoral election
- Billy Ciotto, American politician
- Billy Clanton, American outlaw cowboy
- Billy Clapper, American basketball coach
- Billy Clark (disambiguation), several people
- Billy Clarke (disambiguation), several people
- Billy Clarkson, English professional footballer
- Billy Clay, American NFL player
- Billy Clayson, English professional footballer
- Billy Cleaver, Welsh WRU player
- Billy Clements, English professional rugby league footballer and coach
- Billy Clevenger, American professional stock car racing driver
- Billy Clifford (disambiguation), several people
- Billy Clingman, American MLB player
- Billy Cobb, English footballer
- Billy Cobham, Panamanian-American jazz drummer
- Billy Coggins, English footballer
- Billy Cole, English shot putter
- Billy Cole (footballer), Australian VFL player
- Billy Coleman, Irish motorsport rally driver
- Billy Colgan, American MLB player
- Billy Collings, Scottish footballer
- Billy Collins (disambiguation), several people
- Billy Compton, English footballer
- Billy Congreve, English recipient of the Victoria Cross
- Billy Conigliaro, American MLB player
- Billy Conn, American professional boxer
- Billy Connolly, Scottish actor, musician, television presenter, artist, and stand-up comedian
- Billy Connors, American MLB player, coach, and front office official
- Billy Consolo, American MLB player and coach
- Billy Constable, American bluegrass artist
- Billy Contreras, American jazz violinist, bluegrass fiddler, multi-instrumentalist, session player, and educator
- Billy Conway (rugby league), English rugby league player
- Billy Conway (drummer), American drummer; member of rock bands Treat Her Right and Morphine
- Billy Cook (disambiguation), several people
- Billy Coole, English professional footballer
- Billy Cooper (disambiguation), several people
- Billy Copeland, Scottish cricketer
- Billy Corben, American documentary film director
- Billy Corgan, American guitarist, singer, songwriter, and professional wrestling promoter; frontman of alternative rock band The Smashing Pumpkins
- Billy Corkindale, English footballer
- Billy Cornelius, English professional footballer and manager
- Billy Cosh, American college football coach
- Billy Costa, American radio- and television host
- Billy Costello (disambiguation), several people
- Billy Coté, American member of alternative rock band Madder Rose
- Billy Cotton, English band leader and entertainer
- Billy Cotton (footballer, born 1894), English professional footballer
- Billy Coulthard, English footballer
- Billy Coutu, Canadian NHL player
- Billy Cowan, American MLB player
- Billy Cowan (footballer), Scottish professional footballer
- Billy Cowell, English professional footballer
- Billy Cox (disambiguation), several people
- Billy Coyle (disambiguation), several people
- Billy Cracknell, English professional footballer
- Billy Craig, Scottish footballer
- Billy Craig (rugby league), Australian professional rugby league footballer
- Billy Craigie, Aboriginal Australian activist
- Billy Crain, American songwriter and musician
- Billy "Crash" Craddock, American country- and rockabilly singer
- Billy Crawford, Filipino-American actor, musician, singer, comedian, dancer, and television host
- Billy Crawford (American football), American football player and coach, lawyer, and railroad executive
- Billy Creighton, Canadian NHL player
- Billy Crellin, English professional footballer
- Billy Crinson, English professional footballer
- Billy Crocker, American college football coach
- Billy Crone, Irish footballer
- Billy Crook (disambiguation), several people
- Billy Cross, American guitarist, singer, and producer
- Billy Cross (American football), American NFL player
- Billy Crowell, American MLB pitcher
- Billy Croxon, English footballer
- Billy Crudup, American actor
- Billy Crystal, American actor, comedian, and filmmaker
- Billy Cundiff, American NFL player
- Billy Cunliffe, English professional rugby league footballer
- Billy Cunningham, American NBA and ABA player and coach
- Billy Cupit, English professional footballer
- Billy Curley, English footballer
- Billy Curran, New Zealand rugby league player
- Billy Currie, English multi-instrumentalist and songwriter
- Billy Currington, American country singer and songwriter
- Billy Curtis, American film and television actor
- Billy Cusack, Scottish judoka
- Billy Dainty, English comedian, dancer, physical comedian, pantomime, and television star
- Billy Dale (disambiguation), several people
- Billy Dallison, British motorcycle speedway rider
- Billy Dalto, American politician
- Billy Dalton, Australian rugby league footballer
- Billy Daniels, American singer and actor
- Billy Daniels (footballer), English professional footballer
- Billy Dankert, American musician; member of rock band the Gear Daddies
- Billy Danvers, English comedian and variety show performer
- Billy Danze, American member of hip-hop duo M.O.P.
- Billy Dardis, Irish rugby union player
- Billy Dare, English footballer
- Billy Dargin, Aboriginal Australian tracker
- Billy Darnell, American professional wrestler
- Billy Davenport, American drummer
- Billy Davies, Scottish professional footballer and manager
- Billy Davies (cricketer, born 1936), Welsh cricketer
- Billy Davies (politician), Welsh-born Australian politician
- Billy Davies (Welsh footballer), Welsh international footballer
- Billy Davies (Welsh rugby), Welsh rugby union and professional rugby league footballer
- Billy Davis (disambiguation), several people
- Billy Day, English footballer
- Billy Dea, Canadian NHL player
- Billy Deakin, English footballer
- Billy Dean, American country singer and songwriter
- Billy DeAngelis, American ABA player
- Billy Deans (disambiguation), several people
- Billy Death, English professional footballer
- Billy DeBeck, American cartoonist
- Billy Dec, Filipino-American TV personality, background actor, and businessman
- Billy Decker, American dirt modified- and late model racing driver
- Billy Dedman, Australian SANFL player
- Billy Dee, American adult film actor
- Billy Delves, English footballer
- Billy DeMars, American MLB player and coach
- Billy Denault, Canadian politician
- Billy Dennehy, Irish footballer and sporting director
- Billy Dennis (English footballer), English footballer
- Billy Derbyshire, English professional rugby league footballer
- Billy Dervan, New Zealand rugby league player
- Billy Desmond, American musician
- Billy Devaney, American football executive
- Billy Deverell, American member of the Wonderland Gang
- Billy Devore, American racing driver
- Billy Dewell, American NFL player
- Billy De Wolfe, American character actor
- Billy Diamond, Canadian Indigenous chief
- Billy Dib, Australian professional boxer
- Billy Dick, Australian VFL player
- Billy Dicken, American CFL and AFL player
- Billy Dickinson, English footballer
- Billy Dickson, American cinematographer and television director
- Billy Dickson (footballer), Scottish footballer
- Billy Dillicar, New Zealand lawn bowls player
- Billy Dingsdale, English rugby league player
- Billy Dinsdale, English professional footballer
- Billy Disch, American baseball player and coach
- Billy Dixon, American scout and bison hunter
- Billy Dixon (footballer, born 1905), English professional footballer
- Billy Dixon (footballer, born 1941), Irish association footballer
- Billy Doctrove, Dominica international football referee and international cricket umpire
- Billy Dodds, Scottish football coach and player
- Billy Doherty, Northern Irish member of rock band The Undertones
- Billy Donkin, English professional footballer
- Billy Donlon, American college basketball coach
- Billy Donovan, American NBA coach and player
- Billy Doolan, Australian Indigenous artist
- Billy Dooley, Irish hurler
- Billy Dorrell, English professional footballer
- Billy Dougall, Scottish association footballer and manager
- Billy Douglas (disambiguation), several people
- Billy Dowling, Australian AFL player
- Billy Down, English professional association footballer
- Billy Downer, South African prosecutor
- Billy Drago, American television- and film actor
- Billy Drake, British fighter pilot and air ace
- Billy Draycott, English footballer
- Billy Drennan, Irish hurler
- Billy Drumley, Aboriginal Australian community leader
- Billy Drummond, American jazz drummer
- Billy Duckworth, Australian VFL player
- Billy Dudley, Nigerian political scientist
- Billy Duff, English professional footballer
- Billy Duffy, English rock musician; guitarist in the band The Cult
- Billy Duffy (hurler), Irish hurler
- Billy Duggan, Australian trade unionist
- Billy Dunlop (disambiguation), several people
- Billy Dunn (disambiguation), several people
- Billy Dwyer, Irish hurler
- Billy Eagle, Canadian soldier
- Billy Eames, English professional footballer
- Billy Eardley, English footballer
- Billy Earheart, American Hammond B3 organist and piano player; member of country rock group The Amazing Rhythm Aces
- Billy Earl McClelland, American session guitarist and songwriter
- Billy Earle, American MLB player
- Billy Easton, English footballer
- Billy Eckstine, American jazz and pop singer
- Billy Edd Wheeler, American songwriter, performer, writer, and visual artist
- Billy Eden, English footballer
- Billy Edson, American college football player, coach, lawyer, and politician
- Billy Edwards (disambiguation), several people
- Billy Egan, Australian VFL player
- Billy Egerton, English footballer
- Billy Eichner, American comedian, actor, screenwriter, and television show host
- Billy Eidi, Egyptian-born French classical pianist
- Billy Eisenberg, American professional bridge and backgammon player
- Billy Eli, American singer, songwriter, and autism activist
- Billy Elliot (disambiguation), several people
- Billy Ellis, English footballer
- Billy Elson, English footballer
- Billy Emory Maxwell, American track and field coach
- Billy Engelhart, American racing driver
- Billy Engle, Austro-Hungarian Empire-born American film actor
- Billy Eppler, American MLB executive
- Billy Etbauer, American professional rodeo cowboy
- Billy Etheridge, American member of rock band ZZ Top
- Billy Evangelista, American mixed martial artist
- Billy Evans (disambiguation), several people
- Billy Exley, English professional footballer
- Billy Faier, American banjo player and folk music evangelist
- Billy Fairhurst, English professional footballer
- Billy Falcon, American musician, composer, and music producer
- Billy Fallin, American politician
- Billy Famous, Nigerian professional boxer
- Billy Fane, English actor and comedian
- Billy Farrell (footballer), Irish association footballer
- Billy Farwig, Bolivian alpine skier
- Billy Fellowes, English footballer
- Billy Felton, English professional footballer
- Billy Fenton, English footballer
- Billy Ferguson, Northern Irish footballer
- Billy Fergusson, English footballer
- Billy Fessler, American college football coach
- Billy Fewster, English footballer
- Billy Ficca, American drummer; member of rock groups Television and The Waitresses
- Billy Field (disambiguation), several people
- Billy Findlay, Scottish footballer
- Billy Firehawk, American founder of NWA Shockwave
- Billy Fiske, American combat fighter pilot and Olympic bobsledder
- Billy Fitchett, New Zealand Anglican bishop
- Billy Fitchford, English footballer and cricketer
- Billy Fitzgerald, Canadian field lacrosse player
- Billy Fitzpatrick, Irish sportsperson
- Billy Fleming, Scottish footballer
- Billy Fleming (landscape architect), American landscape designer, city planner, and climate activist
- Billy Flint, English footballer
- Billy Flynn (disambiguation), several people
- Billy Fogg, English professional footballer
- Billy Forbes (disambiguation), several people
- Billy Ford (singer), American pop vocal singer
- Billy Fordjour, Ghanaian middle-distance runner
- Billy Forsberg, Swedish speedway rider
- Billy Foster, Canadian racecar driver
- Billy Foulkes, Welsh international footballer
- Billy Fox (disambiguation), several people
- Billy Frame, Scottish footballer
- Billy Frampton, Australian AFL player
- Billy Franey, American film actor
- Billy Frank (disambiguation), several people
- Billy Fraser, Scottish professional footballer
- Billy Fraser (footballer, born 1868), Scottish footballer
- Billy Frazer, New Zealand racing driver
- Billy Friedberg, American producer and screenwriter
- Billy Frith, English footballer and manager
- Billy Frolick, American screenwriter and film director
- Billy Fuccillo, American car dealer
- Billy Fulton, New Zealand professional rugby union player
- Billy Furness, English professional footballer
- Billy Fury, English musician
- Billy Gabor, American NBA player
- Billy Gaffney, American murder victim
- Billy Gallagher (disambiguation), several people
- Billy Gallier, English footballer and manager
- Billy Galligan, Irish hurler
- Billy Galvin (hurler), Irish hurler
- Billy Gambetta, Australian VFL player
- Billy Gambrell, American NFL player
- Billy Garcia, American heavy metal musician; constant on Survivor
- Billy Gardell, American actor and stand-up comedian
- Billy Gardner, American MLB player, coach, and manager
- Billy Garland, American blues guitarist, singer, and songwriter
- Billy Garland (activist), American political activist; father of rapper Tupac Shakur
- Billy Garraty, English footballer
- Billy Garrett, American racecar driver
- Billy Garrett Jr., American NBA player
- Billy Garrett (politician), American politician and lawyer
- Billy Garton, English football coach and professional player
- Billy Gasparino, American MLB executive
- Billy Gaughan, English professional footballer
- Billy Gault, American NFL player
- Billy Gayles, American rhythm & blues drummer and vocalist
- Billy Gazonas, American NASL and MISL player
- Billy Geen, Welsh rugby union player
- Billy Geer, American MLB player
- Billy Gene Pemelton American pole vaulter
- Billy Gent, Australian VFL player
- Billy George (disambiguation), several people
- Billy Gernon, American college baseball coach
- Billy Gerrish, English professional footballer
- Billy Gibbons, American rock musician; member of rock band ZZ Top
- Billy Gibson (disambiguation), several people
- Billy Gierhart, American television director and steadicam operator
- Billy Gilbert (disambiguation), several people
- Billy Giles, Northern Irish politician and convicted murderer
- Billy Gill, Australian VFL player
- Billy Gillespie, Irish footballer
- Billy Gillies, Northern Irish disc jockey and trance music producer
- Billy Gilligan, Scottish footballer
- Billy Gilliland, Scottish badminton player
- Billy Gillispie, American college basketball coach
- Billy Gilman, American country singer
- Billy Gilmore, American musician
- Billy Gilmour, Scottish professional footballer
- Billy Gilmour (ice hockey), Canadian NHL player
- Billy Ging, American MLB pitcher
- Billy Gladdon, English cricketer and footballer
- Billy Glading, American MLL player
- Billy Gladstone, Romanian-born American drummer, percussionist, inventor, and drum builder- and teacher
- Billy Glason, American vaudeville entertainer, songwriter, and comedian
- Billy Glaze, American convicted serial killer
- Billy Gleason, American MLB player
- Billy Glenn, New Zealand rugby union player
- Billy Glide, American pornographic actor
- Billy Glover, English footballer
- Billy Godleman, English cricketer
- Billy Godwin, American college baseball coach and pitcher
- Billy Goeckel, American MLB player
- Billy Goelz, American professional wrestler, booker, and trainer
- Billy Goffin, English professional footballer
- Billy Goh, Singaporean politician
- Billy Gohl, German-American murderer and suspected serial killer
- Billy Goldberg, American emergency medicine physician and assistant professor- and director
- Billy Golden, American comedian, singer, actor, and vaudevillian
- Billy Goldenberg, American composer and songwriter
- Billy Golfus, American disability rights activist
- Billy Gonsalves, American soccer player
- Billy Gonzales, American football coach and player
- Billy Good, English professional cricketer
- Billy Gooden, Canadian NHL player
- Billy Goodhew, English professional cricketer
- Billy Goodman, American MLB player
- Billy Goodwin, English footballer
- Billy Goodwin (musician), American member of contemporary Christian music group NewSong
- Billy Gordon, Indigenous Australian politician
- Billy Gore, Welsh rugby union- and professional rugby league footballer
- Billy Gould, American musician and producer
- Billy Gould (comedian), American comedian and minstrel show performer
- Billy Goundry, English professional footballer
- Billy Gowers, Australian VFL player and AFL player
- Billy Grabarkewitz, American MLB player
- Billy Grace, Australian VFL player
- Billy Graham (disambiguation), several people
- Billy Gram, American musician, screenwriter, actor, professional wrestler manager, color commentator, and political activist
- Billy Grammer, American country singer and guitar player
- Billy Granville, American NFL player
- Billy Grassam, Scottish footballer
- Billy Graulich, American MLB player
- Billy Gray (disambiguation), several people
- Billy Graziadei, American musician; member of hardcore band Biohazard
- Billy Green (disambiguation), several people
- Billy Greene, Canadian football player
- Billy Greenhorn, American poet
- Billy Greer, American musician; past member of rock band Kansas
- Billy Greer (footballer), English footballer
- Billy Greulich, English footballer
- Billy Griffin, American singer and songwriter
- Billy Griffith, English cricketer and cricket administrator
- Billy Griffith (footballer), Australian VFL player
- Billy Griffiths (disambiguation), several people
- Billy Griggs, American professional BMX racer
- Billy Griggs (American football), American NFL player
- Billy Grimes, American NFL player
- Billy Grimshaw, English footballer
- Billy Guest, English professional footballer
- Billy Gumbert, American MLB pitcher
- Billy Gunn, American professional wrestler and coach
- Billy Gussak, American jazz- and recording session drummer
- Billy Gustafsson, Swedish politician
- Billy Guy, American singer; member of rhythm and blues/rock and roll vocal group The Coasters
- Billy Guyton, New Zealand rugby union player
- Billy Haddleton, Canadian football player
- Billy Hagan (disambiguation), several people
- Billy Hague, Canadian ice hockey player
- Billy Hahn, American basketball coach
- Billy Hails, English professional footballer
- Billy Hainey, Scottish professional footballer
- Billy Hales, English footballer
- Billy Hall (disambiguation), several people
- Billy Halliday, Scottish professional association footballer
- Billy Halligan, Irish professional association footballer
- Billy Halop, American actor
- Billy Halsall, English footballer
- Billy Hamill, American international motorcycle speedway rider
- Billy Hamilton (disambiguation), several people
- Billy Hammond, Australian VFL player
- Billy Hampson, English footballer and manager
- Billy Hancock, American singer, guitarist, bassist, and multi-instrumental recording artist
- Billy Hanna, Northern Irish soldier
- Billy Hanning Jr., American Paralympic sledge hockey player
- Billy Hardee, American NFL-, CFL-, and USFL player
- Billy Hardin, American track and field athlete
- Billy Hardwick, American ten-pin bowler
- Billy Hardy (disambiguation), several people
- Billy Harker, English professional association footballer
- Billy Harmon, New Zealand rugby union player
- Billy Harper, American jazz saxophonist
- Billy Harper (footballer, born 1877), English footballer
- Billy Harper (footballer, born 1897), English professional footballer
- Billy Harrell, American MLB player
- Billy Harris (disambiguation), several people
- Billy Harrison (disambiguation), several people
- Billy Hart, American jazz drummer and educator
- Billy Hart (baseball), American MLB pitcher
- Billy Hartill, English professional footballer
- Billy Hartman, Scottish actor
- Billy Hartung (disambiguation), several people
- Billy Harvey, Australian VFL player
- Billy Harvey (politician), American politician
- Billy Hassett, American NBL and NBA player
- Billy Hatcher, American MLB player and coach
- Billy Haughton, American harness driver and trainer
- Billy Hawks, American R&B and jazz organist
- Billy Haydock, English footballer
- Billy Hayes (disambiguation), several people
- Billy Haywood, English footballer
- Billy Heames, English footballer
- Billy Heath, English footballer
- Billy Hector, American blues guitarist and singer-songwriter
- Billy Hedderman, Irish Army officer
- Billy Henderson (disambiguation), several people
- Billy Hendry, Scottish footballer
- Billy Hennebery, Irish hurler
- Billy Hennessy, Irish hurler
- Billy Henry, Scottish professional footballer
- Billy Herbert, English footballer
- Billy Herman, American MLB player and manager
- Billy Herod, American football coach
- Billy Herrington, American model and pornographic film actor
- Billy Hewes, American politician
- Billy Hiatt, English boxer
- Billy Hibbert, English professional footballer
- Billy Hick, English footballer
- Billy Hickling, English footballer
- Billy Hickman, American politician
- Billy Hickman (American football), American college football coach
- Billy Hicks, American moving target shooter
- Billy Higgins (disambiguation), several people
- Billy Hilfiger, American past member of rock band Brain Surgeons
- Billy Hill (disambiguation), several people
- Billy Hillenbrand, American AAFC player
- Billy Hind, English professional footballer
- Billy Hinsche, American musician
- Billy Hinton, Irish international rugby union player
- Billy Hitchcock, American MLB player, coach, manager, and scout
- Billy Hix, American NFL player
- Billy Hodgson, Scottish footballer
- Billy Hoeft, American MLB pitcher
- Billy Hoffman (singer), American country singer and songwriter
- Billy Hogan, American singer and songwriter
- Billy Hogg, English footballer
- Billy Hogg (Scottish footballer), Scottish association footballer
- Billy Holder, English rugby union- and professional rugby league footballer
- Billy Holding, English professional rugby league footballer
- Billy Hole, Welsh footballer
- Billy Hole (speedway rider), British motorcycle speedway rider
- Billy Holland, Irish rugby union player
- Billy Holland (baseball), American Negro leagues player
- Billy Holm, American MLB player
- Billy Holmes (disambiguation), several people
- Billy Holowesko, Bahamian sailor
- Billy Hong, Australian professional rugby league footballer
- Billy Hood, English footballer
- Billy Hooper, Canadian football player
- Billy Hopkins, American partner of film producer, director, and screenwriter Lee Daniels
- Billy Horn, Scottish professional footballer
- Billy Horne, American Negro league player
- Billy Horner, English footballer and manager
- Billy Horschel, American professional golfer
- Billy Hough (disambiguation), several people
- Billy Houghton, English professional footballer
- Billy Houliston, Scottish footballer
- Billy House, American actor, vaudevillian, and Broadway performer
- Billy Howard (comedian), English comedian and impressionist
- Billy Howard (gridiron football), American NFL- and CFL player
- Billy Howat, Scottish curler
- Billy Howden, Scottish footballer
- Billy Howells, English professional footballer
- Billy Howerdel, American musician; member of rock band A Perfect Circle
- Billy Howle, English actor
- Billy Howton, American NFL player
- Billy Hudson, American politician
- Billy Hufsey, American actor and singer
- Billy Hughes (disambiguation), several people
- Billy Hulen, American MLB player
- Billy Hull, Northern Irish politician
- Billy Hullin, Welsh international rugby union player
- Billy Hume, Scottish professional footballer
- Billy Humphreys, English footballer
- Billy Humphries, Northern Irish footballer
- Billy Hunt (footballer), English professional footballer
- Billy Hunter (disambiguation), several people
- Billy Hurley (disambiguation), several people
- Billy Hutchinson (disambiguation), several people
- Billy Ibadulla, Pakistani-New Zealander cricketer, cricket coach, and umpire
- Billy Idol, English punk singer, songwriter, musician, and actor
- Billy Incardona, American professional pool player
- Billy Ingham, English professional footballer
- Billy Ingram, English footballer
- Billy Ions, English professional footballer
- Billy Ireland, American cartoonist
- Billy Irwin (disambiguation), several people
- Billy Iuso, American guitarist, singer, and songwriter
- Billy Ivison, English professional association football- and rugby league footballer
- Billy J. Creech, American politician
- Billy J. Kramer, English pop singer
- Billy Jack (disambiguation), several people
- Billy Jackson (disambiguation), several people
- Billy Jacobsen, American 2017 Pickleball Hall of Fame inductee
- Billy Jacobson, South African jockey
- Billy Jacques, English rugby union and professional rugby league footballer
- Billy Jaffe, American on-air ice hockey analyst
- Billy Jagar, Australian Aboriginal elder
- Billy James (disambiguation), several people
- Billy Jamieson, Canadian treasure- and antique dealer and reality TV star
- Billy Janniro, American motorcycle speedway rider
- Billy Jarman, English professional rugby league footballer
- Billy Jay Stein, American pianist, keyboardist, composer, music director, record producer, electronic music designer, and mixing engineer
- Billy-Jean Ale, New Zealand rugby league footballer
- Billy Jeavons, English professional footballer
- Billy Jefferson, American NFL player and coach
- Billy Jeffrey, Scottish footballer
- Billy Jenkins (disambiguation), several people
- Billy Jennings, English footballer
- Billy Jennings (Welsh footballer), Welsh footballer
- Billy Jensen, American investigative journalist, author, producer, and podcaster
- Billy Jernigan, American wrestler
- Billy Jervis, English professional footballer
- Billy Joe (disambiguation), several people
- Billy Joel, American singer, songwriter, and pianist
- Billy Johnson (disambiguation), several people
- Billy Johnston (disambiguation), several people
- Billy Johnstone, Australian rugby league footballer
- Billy Joiner, American professional boxer
- Billy Jo Lara, American defendant in the United States v. Lara case
- Billy Jo Robidoux, American MLB player
- Billy Jonas, American singer-songwriter, percussionist, multi-instrumentalist, and recording artist
- Billy Jones (disambiguation), several people
- Billy Jordan, Irish association footballer
- Billy Joy, English footballer
- Billy Joya, Honduran military officer
- Billy Joyce, Irish Gaelic football player and manager
- Billy Jurges, American MLB player, manager, coach, and scout
- Billy K. Solomon, American Quartermaster officer
- Billy Kahora, Kenyan writer and editor
- Billy Kametz, American voice- and stage actor
- Billy Kan, Hong Kong billionaire and businessman
- Billy Kann, American professional stock car racing driver
- Billy Karren, American musician; past member of punk rock band Bikini Kill
- Billy Kaunda, Malawian musician and politician
- Billy Kay (disambiguation), several people
- Billy Keane, Irish hurler
- Billy Kearns, American actor
- Billy Keast, English professional rugby union player
- Billy Kee, English-born Northern Irish footballer
- Billy Keith, American politician
- Billy Kelleher, Irish politician
- Billy Keller, American NBA player
- Billy Kellock, English footballer and manager
- Billy Kellock (footballer, born 1954), Scottish footballer
- Billy Kelly (disambiguation), several people
- Billy Kelsey, American MLB player
- Billy Kenneally, Irish politician
- Billy Kennedy (disambiguation), several people
- Billy Kenny (disambiguation), several people
- Billy Kenoi, American politician
- Billy Keraf, Indonesian professional footballer
- Billy Kerr, Irish cyclist
- Billy Kersands, African-American comedian and dancer
- Billy Kershaw, English professional rugby league footballer
- Billy Ketkeophomphone, French-born Laos professional footballer
- Billy Kettle, English professional footballer
- Billy Key, British Indian Army officer
- Billy Keys, American SPB and NBA player and coach
- Billy Kibblewhite, Canadian long-distance runner
- Billy Kidd, American ski racer
- Billy Kidd (American football), American NFL player
- Billy Kidd (footballer), English footballer
- Billy Kidman, American professional wrestler
- Billy Kiernan, English footballer
- Billy Kilmer, American NFL player
- Billy Kilson, American jazz drummer
- Billy Kim, South Korean Christian evangelist and humanitarian
- Billy Kimball, American writer and producer
- Billy Kinard, American NFL- and AFL player and coach
- Billy King (disambiguation), several people
- Billy Kingdon, English footballer
- Billy Kinloch, American MLB player
- Billy Kinsley, English musician; member of Liverpool Express and The Merseybeats
- Billy Kirk, English professional rugby league footballer
- Billy Kirkman, English professional footballer
- Billy Kirkwood, Scottish coach and footballer
- Billy Kirsch, American songwriter and consultant
- Billy Kirsopp, English professional footballer
- Billy Kirton, English footballer
- Billy Kitchin, English professional rugby league footballer
- Billy Klapper, American spur and bit maker
- Billy Klaus, American MLB player
- Billy Klippert, Canadian rock singer-songwriter
- Billy Klusman, American MLB player
- Billy Klüver, American electrical engineer
- Billy Knight, American ABA and NBA player and executive
- Billy Knight (basketball, born 1979), American professional basketball player
- Billy Knight (criminal), Canadian criminal
- Billy Knight (tennis), English tennis player
- Billy Knipper, American racing driver
- Billy Knott, English footballer
- Billy Koch, American MLB relief pitcher
- Billy Koen, American professor emeritus of mechanical engineering
- Billy Konchellah, Kenyan Olympic runner
- Billy Konstantinidis, Greek-Australian footballer
- Billy Kopsch, French-born Australian professional wrestler
- Billy Koumetio, French professional footballer
- Billy Kountz, American businessman, football player, manager, and humorist
- Billy Kratzert, American professional golfer and sportscaster
- Billy Kristian, New Zealand past member of rock group Ray Columbus & the Invaders
- Billy Kyle, American jazz pianist
- Billy Lacken, Canadian ECAHL player
- Billy Laing, Scottish professional footballer
- Billy Lambe, English footballer
- Billy La Min Aye, Burmese singer-songwriter
- Billy Lamont, Scottish football player and manager
- Billy Lamont (speedway rider), Australian motorcycle speedway rider
- Billy Lane, American builder of custom motorcycles
- Billy Lane (angler), English angler and author
- Billy Lane (footballer), English footballer
- Billy Lane Lauffer, United States Army soldier during the Vietnam War
- Billy Lang, American lyricist and music publisher
- Billy Lange, American college basketball coach
- Billy Langham, English footballer
- Billy Lansdowne, English professional footballer
- Billy Latsko, American NFL player
- Billy Lau, Hong Kong film actor
- Billy Lauder, American MLB player and coach
- Billy Laughlin, American child actor
- Billy Laval, American minor league baseball player, baseball manager, and college baseball, football, and basketball coach
- Billy Law, English professional footballer
- Billy Lawless, Irish politician and businessman
- Billy Lawrence, American R&B/soul singer-songwriter, record producer, and arranger
- Billy Layton, English footballer
- Billy Leahy, Australian VFL player
- Billy Lee (disambiguation), several people
- Billy Leech, English footballer
- Billy Leeds, Australian VFL player
- Billy Leese, English footballer
- Billy Lefear, American NFL player
- Billy Legg, English professional footballer
- Billy Leighton, English footballer
- Billy Leisaw, American racing driver
- Billy Leitch, Irish footballer
- Billy Lenoir, American tennis player
- Billy Leonard, Irish politician
- Billy Leslie, American professional racing driver
- Billy Levy, American entrepreneur
- Billy Lewis (disambiguation), several people
- Billy Liar (band), Scottish acoustic punk/folk band and solo singer
- Billy Libbis, Australian VFL player
- Billy Liddell, Scottish footballer
- Billy Light, English footballer
- Billy Linacre, English professional footballer
- Billy Lindsay, English professional footballer
- Billy Linward, English footballer
- Billy Little, Scottish professional footballer and manager
- Billy Little (1900s rugby league), English professional rugby league footballer
- Billy Little (rugby league, born 1911), English professional rugby league footballer
- Billy Livsey, American songwriter, keyboardist, and producer
- Billy Lobjoit, English professional footballer
- Billy Loes, American MLB pitcher
- Billy Lomas, English footballer
- Billy Long, American politician, realtor, and auctioneer
- Billy Longden, English footballer
- Billy Longer, Australian AFL player
- Billy Lothridge, American NFL player
- Billy Lott, American NFL and AFL player
- Billy Loughnane, Irish jockey
- Billy Lucas, Welsh international footballer
- Billy Luke, English professional footballer
- Billy Lumley, English footballer
- Billy Lunn (disambiguation), several people
- Billy Lush, American actor
- Billy Lush (baseball), American MLB player and college athletics coach and administrator
- Billy Lustig, American gang leader and labor racketeer
- Billy Luther, Native American independent film writer, producer, and director
- Billy Lyall, Scottish musician
- Billy Lyell, American professional boxer
- Billy Lynch (disambiguation), several people
- Billy Lynn, English professional footballer
- Billy Lyon, American NFL player
- Billy Lyon (footballer), Scottish footballer
- Billy Lyons, American murder victim
- Billy M. Minter, American Air Force general
- Billy MacDermott, Argentine cricketer
- Billy MacDonald (disambiguation), several people
- Billy MacKay, Scottish professional footballer
- Billy MacKay (cricketer), English cricketer
- Billy Mackel, American jazz guitarist
- Billy MacKenzie, Scottish singer and songwriter
- Billy MacKenzie (motorcyclist), Scottish professional motocross racer
- Billy Mackesy, Irish dual player of Gaelic games, hurler, and footballer
- Billy MacKinnon, Scottish footballer
- Billy MacLellan, Canadian actor
- Billy MacLeod, American MLB relief pitcher
- Billy Macqueen, English founder of television company Darrall Macqueen
- Billy Madden, American boxer, pugilistic trainer, manager, playwright, author, journalist, and producer of sporting events
- Billy Madin, English footballer
- Billy Magnussen, American actor
- Billy Magoulias, Australian-born Greek international rugby league footballer
- Billy Mahan, American film actor
- Billy Maharg, American professional boxer and MLB player
- Billy Maher, English radio presenter and musician
- Billy Mail, Scottish actor
- Billy Mainwaring, Welsh international rugby union player
- Billy Majors, American AFL player
- Billy Maloney, American MLB player
- Billy Malpass, English footballer
- Billy Mamaril, Filipino-American PBA player
- Billy Mandindi, South African activist-artist
- Billy Mann, American record producer and songwriter
- Billy Mann (rugby union), Australian international rugby union player
- Billy Mansfield, American serial killer, child molester, and sex offender
- Billy Manuel, English professional footballer
- Billy March, English footballer
- Billy Marek, American college football player
- Billy Marsden, English international footballer
- Billy Marsh, British theatrical agent
- Billy Marshall (disambiguation), several people
- Billy Martin (disambiguation), several people
- Billy Martindale, American professional golfer
- Billy Masetlha, South African intelligence officer
- Billy Mason, American vaudeville performer and film comedian
- Billy Masters (disambiguation), several people
- Billy Mataitai, French Polynesian footballer
- Billy Matthews (disambiguation), several people
- Billy Mauch, American actor
- Billy Mavreas, Canadian cartoonist and artist
- Billy Maxted, American jazz pianist
- Billy Maxwell, American professional golfer
- Billy May, American composer, arranger, and trumpeter
- Billy Mayerl, English pianist and composer
- Billy Mayfair, American professional golfer
- Billy May (footballer), English footballer
- Billy Mays (disambiguation), several people
- Billy McAdams, Northern Irish footballer
- Billy McAllister, Australian professional boxer
- Billy McAllister (footballer), Scottish professional footballer
- Billy McAvoy, Northern Irish footballer
- Billy McBean, Australian VFL player
- Billy McBryde, Welsh rugby union player
- Billy McCaffrey, American NBL player and coach
- Billy McCandless, Irish international footballer and manager
- Billy McCann, American college basketball coach
- Billy McCarter, Australian VFL player
- Billy McCarthy, Irish hurler
- Billy McCarthy (boxer), English-born Australian professional boxer
- Billy McCartney, Scottish footballer
- Billy McCaughey, Northern Irish politician and convicted murderer
- Billy McClain, African-American acrobat, comedian, and actor
- Billy McClure, English-born New Zealand footballer
- Billy McColl (disambiguation), several people
- Billy McComb, Northern Irish-born American magician and comedian
- Billy McCombe, Irish international rugby union player
- Billy McConnachie, Scotland international rugby league footballer
- Billy McConnell (disambiguation), several people
- Billy McCool, American MLB pitcher
- Billy McCormack (Louisiana pastor), American Southern Baptist clergyman
- Billy McCrary, American professional wrestler
- Billy McCray, American politician
- Billy McCulloch, Scottish footballer
- Billy McCullough, Northern Irish footballer
- Billy McDevitt, Northern Irish footballer
- Billy McEwan (disambiguation), several people
- Billy McFarland, American businessman, entrepreneur, and financial criminal
- Billy McFarland (loyalist), Northern Irish politician
- Billy McGee (footballer), Australian VFL player
- Billy McGhie (disambiguation), several people
- Billy McGimsie, Canadian ice hockey player
- Billy McGinley, Scottish professional footballer
- Billy McGinty (disambiguation), several people
- Billy McGlen, English professional footballer
- Billy McGlory, American saloon keeper and underworld figure
- Billy McGregor, Australian VFL player
- Billy McGuinness, Irish member of rock band Aslan
- Billy McIntosh, Scottish footballer
- Billy McIsaac, Scottish musician
- Billy Mckay, English-born Northern Irish professional footballer
- Billy McKeag, Northern Irish professional footballer
- Billy McKee, Irish politician
- Billy McKinlay, Scottish football manager and professional footballer
- Billy McKinlay (footballer), Scottish professional footballer
- Billy McKinney (disambiguation), several people
- Billy McLaren, Scottish association footballer and manager
- Billy McLauchlan, Scottish footballer
- Billy McLaughlin, American new age acoustic guitarist, composer, and producer
- Billy McLean (disambiguation), several people
- Billy McLeod,, English footballer
- Billy McMahon (athlete), American long-distance runner
- Billy McMillan (disambiguation), several people
- Billy McMullen, American NFL player
- Billy McNamara, Australian professional rugby league footballer
- Billy McNeill, Scottish footballer and manager
- Billy McNeill (ice hockey), Canadian NHL player
- Billy McNulty, Scottish footballer
- Billy McOwen, English footballer
- Billy McPate, Scottish cricketer and umpire
- Billy McPhail, Scottish footballer
- Billy McQuiston, Northern Irish politician and criminal
- Billy McShepard, American professional basketball player
- Billy Mead, English cricketer
- Billy Meehan, American politician
- Billy Meeske, Australian professional wrestler
- Billy Mehmet, English professional footballer
- Billy Meier, Swiss author and founder of a UFO religion
- Billy Mellors, Scottish international indoor- and lawn bowler
- Billy Melvin, Scottish footballer
- Billy Merasty, Aboriginal Canadian actor and writer
- Billy Mercer (disambiguation), several people
- Billy Meredith, Welsh professional footballer
- Billy Merrell, American author and poet
- Billy Merson, English music hall performer, comedian, and songwriter
- Billy Meyer, American MLB player and manager
- Billy Middleton, English professional footballer
- Billy Midwinter, English-born Australian cricketer
- Billy Milano, American heavy metal- and hardcore punk musician
- William Millar (disambiguation), several people
- Billy Millard, Australian rugby union coach and current rugby director
- Billy Miller (disambiguation), several people
- William Milligan (disambiguation), several people
- Billy Mills (disambiguation), several people
- Billy Milne, Scottish footballer
- Billy Milne (footballer, born 1873), English footballer and cricketer
- Billy Milner, American NFL player
- Billy Milton, English stage, film, and television actor
- Billy Mims, American basketball coach
- Billy Minardi, American killed in the 9/11 attacks
- Billy Minick, American professional rodeo cowboy and stock contractor
- Billy Minor, American NFL and AFL player
- Billy Minsky, American burlesque presenter
- Billy Minter, English footballer, trainer, manager, and assistant secretary
- Billy Miske, American professional boxer
- Billy Mitchell (disambiguation), several people
- Billy Mize, American country singer-songwriter, steel guitarist, band leader, and TV show host
- Billy Modise, South African activist and diplomat
- Billy Moeller, Australian boxer
- Billy Moffatt, Scottish professional footballer
- Billy Mohl, American college baseball coach
- Billy Mohler, American producer, songwriter, and multi-instrumentalist
- Billy Moloughney, Irish hurler
- Billy Molyneux, English footballer
- Billy Monagle, Australian VFL player
- Billy Monger, English racing driver
- Billy Monk, South African man known for his photographs of a Cape Town nightclub
- Billy Montana, American country singer-songwriter
- Billy Montgomery, American educator and politician
- Billy Moon, English association footballer
- Billy Moore (disambiguation), several people
- Billy Moores, Canadian ice hockey executive, scout, and NHL assistant coach
- Billy Moran, American MLB player
- Billy More, Italian drag queen and music artist
- Billy Morgan (disambiguation), several people
- Billy Morin, Canadian Cree First Nations leader
- Billy Morris (disambiguation), several people
- Billy Morrison (disambiguation), several people
- Billy Morrissette, American Billy Morrissette; husband of Maura Tierney from 1993 to 2006
- Billy Mosforth, English footballer
- Billy Moss, alternate name of W. Stanley Moss, Japanese-born British soldier, writer, and traveller
- Billy Mothle, South African judge
- Billy Mould, English footballer
- Billy Moxham, Australian VFL player
- Billy Muffett, American MLB pitcher and coach
- Billy Muir, Scottish footballer
- Billy Mullen, American MLB player
- Billy Mundi, American drummer
- Billy Munn, Scottish jazz pianist and arranger
- Billy Munro (disambiguation), several people
- Billy Murcia, American drummer
- Billy Murdoch, Australian cricketer
- Billy Murdoch (footballer), Scottish professional footballer
- Billy Mure, American guitarist and songwriter
- Billy Murphy (disambiguation), several people
- Billy Murray (disambiguation), several people
- Billy Mutale, Zambian footballer
- Billy Mwaningange, Namibian politician
- Billy Mwanza, Zambian footballer
- Billy Myers, American MLB player
- Billy Myers (Canadian football), Canadian CFL player
- Billy Myers (Gaelic footballer), Irish sportsperson
- Billy Myles, American R&B singer and songwriter
- Billy Nair, South African politician, trade unionist, and anti-apartheid activist
- Billy Name, American photographer, filmmaker, lighting designer, and archivist
- Billy Napier, American football coach
- Billy Nash, American MLB player
- Billy Nasty, British techno- and electro DJ and artist
- Billy Naylor, American child actor
- Billy Neale, English footballer
- Billy Neale (cricketer), English professional cricketer
- Billy Nealon, American professional tennis player
- Billy Neighbors, American AFL player
- Billy Neil (disambiguation), several people
- Billy Neill, Northern Irish footballer
- Billy Nelson (disambiguation), several people
- Billy Nesbitt, English professional footballer
- Billy Nevett, English flat racing jockey
- Billy Neville (footballer), Irish footballer
- Billy Newham, English cricketer
- Billy Newing, Australian VFL player
- Billy Newman, Irish footballer
- Billy Newnes, English jockey
- Billy Newsome, American NFL player
- Billy Newton, English professional footballer
- Billy Newton-Davis, American-Canadian R&B-, jazz-, and gospel singer and songwriter
- Billy Ng, Malaysian badminton player
- Billy Ngawini, Italian international rugby union footballer
- Billy Nicholas, American Negro league baseball pitcher
- Billy Nicholls, English singer, songwriter, composer, record producer, and musical director
- Billy Nichols, American guitarist and soul songwriter
- Billy Nicholson (disambiguation), several people
- Billy Nicks, American college football player and coach
- Billy Nicolle, New Zealand association footballer
- Billy Noke, Australian professional rugby league footballer
- Billy Nolan (hurler), Irish hurler
- Billy Nolen, American government official
- Billy Nomates, English musician and singer-songwriter
- Billy Nordström, Swedish footballer
- Billy Nungesser, American politician
- Billy Nunn (disambiguation), several people
- Billy Nuttall, English footballer
- Billy Oatman, American ten-pin bowler
- Billy Ocasio, Puerto Rican-American politician
- Billy Ocean, Trinidadian-born English singer and songwriter
- Billy Odhiambo, Kenyan rugby sevens player
- Billy Ogan, Thai actor and singer
- Billy Ohlsson, Swedish football player and manager
- Billy Olson, American Olympic pole vaulter
- Billy Openshaw, English professional footballer
- Billy Orchard, Australian VFL player
- Billy Orr (disambiguation), several people
- Billy Osceola, Seminole minister and politician
- Billy Oskay, American violinist and record producer
- Billy Osmun, American Dirt Modified racing driver
- Billy Oswald, Scottish footballer
- Billy Ott, American MLB player
- Billy Otterson, American MLB player
- Billy Ouattara, Ghanaian-French professional basketball player
- Billy Owen, English footballer
- Billy Owens, American NBA player
- Billy Owens (American football), American NFL player
- Billy Oxley, English footballer
- Billy Packer, American college basketball player, sportscaster, and author
- Billy Page, American musician, songwriter, and producer
- Billy Palmer, English professional footballer
- Billy Palmer (baseball), English-born American MLB pitcher
- Billy Pang, Hong Kong Canadian politician
- Billy Papke, American boxer
- Billy Pappas, American professional table football player and poker player
- Billy Pardon, Australian VFL player
- Billy Parish, American environmental entrepreneur, author, and activist
- Billy Parker (disambiguation), several people
- Billy Parks, American NFL player
- Billy Payne, American golf administrator
- Billy Payne (footballer), Australian VFL player
- Billy Peach, Canadian CFL player
- Billy Peake, English footballer
- Billy Pearce, English performer, comedian, actor, and entertainer
- Billy Pearson, American thoroughbred horse racing jockey, quiz-show winner, art expert and dealer, and actor
- Billy Pearson (footballer), Irish footballer
- Billy Pease, English international footballer
- Billy Peek, American rock and roll- and blues guitarist, singer, songwriter, composer, and producer
- Billy Penrose, English jazz musician
- Billy Peplow, English professional footballer
- Billy Peterson, American bass player, songwriter, composer, session musician, and producer
- Billy Petrick, American MLB pitcher
- Billy Petrolle, American professional boxer
- Billy Pharis, Lebanese American basketball player
- Billy Phillips (soccer), American NASL and MISL player, and later coach
- Billy Phipps, American jazz baritone saxophonist and composer
- Billy Phillips (TV personality), British participant in Geordie Shore series 14
- Billy Picken, Australian VFL player
- Billy Pierce, American MLB starting pitcher
- Billy Pierce (choreographer), African American choreographer, dancer, and dance studio owner
- Billy Pigg, English player of Northumbrian smallpipes
- Billy Pilkington, Irish soldier, candidate, and priest
- Billy Pincott, Australian VFL player
- Billy Pirie, Scottish footballer
- Billy Pittman, American football player
- Billy Plunkett, Australian VFL player
- Billy Poe, American NFL and AFL player
- Billy Pollard, Australian rugby union player
- Billy Pollina, American film- and television writer, producer, and director
- Billy Polston, American politician
- Billy Pontoni, Colombian singer-songwriter and guitarist
- Billy Poole, English footballer
- Billy Porter (disambiguation), several people
- Billy Postlethwaite, English actor
- Billy Poulson, English footballer
- Billy Powell, American musician
- Billy Powell (footballer), English professional footballer
- Billy Power (disambiguation), several people
- Billy Poyntz, Welsh footballer
- Billy Pratt (disambiguation), several people
- Billy Prempeh, American candidate in the 2024 United States House of Representatives elections in New Jersey
- Billy Preston, American keyboardist, singer, and songwriter
- Billy Preston (basketball), American professional basketball player
- Billy Price (disambiguation), several people
- Billy Pricer, American NFL player
- Billy Pritchett, American NFL player
- Billy Probert, English footballer
- Billy Proctor, New Zealand professional rugby union player
- Billy Purcell, Irish hurler
- Billy Purtell, American MLB player
- Billy Purvis (disambiguation), several people
- Billy Pye, English footballer
- Billy Quarantillo, American mixed martial artist
- Billy Queen, American undercover agent with the U.S. ATF, and author
- Billy Queen (baseball), American MLB player
- Billy Quinn (disambiguation), several people
- Billy Quirk, American stage- and silent-film actor
- Billy Race, English footballer
- Billy Rackard, Irish hurler and Gaelic footballer
- Billy Radloff, South African international lawn bowler
- Billy Rae, Canadian international lawn bowls player
- Billy Rafferty, Scottish footballer
- Billy Raffoul, Canadian rock singer-songwriter
- Billy Rafter, American stock car driver
- Billy Raimondi, American professional baseball player
- Billy Rancher, American rock vocalist and songwriter
- Billy Ranieri, American restaurant founder
- Billy Rankin (disambiguation), several people
- Billy Rath, American past member of punk rock band The Heartbreakers
- Billy Rautenbach, Zimbabwean businessman
- Billy Ray (disambiguation), several people
- Billy Rayner, Australian rugby league footballer
- Billy Reay, Canadian NHL player and coach
- Billy Redden, American actor
- Billy Red Lyons, Canadian professional wrestler
- Billy Redman, English footballer
- Billy Redmayne, Manx soldier and motorcycle racer
- Billy Redmond, American MLB player
- Billy Reed (disambiguation), several people
- Billy Rees, Welsh professional footballer
- Billy Reeves, English songwriter, musician, record producer, and broadcaster
- Billy Reeves (footballer), Welsh professional footballer
- Billy Reid (disambiguation), several people
- Billy Reil, American professional wrestler
- Billy Reina, German professional footballer
- Billy Reynolds (disambiguation), several people
- Billy Rhiel, American MLB player
- Billy Rhines, American MLB pitcher
- Billy Rhodes (disambiguation), several people
- Billy Rice, Northern Irish-born Australian soccer player
- Billy Rich, American electric bassist and blues musician
- Billy Richards (disambiguation), several people
- Billy Riebock, American college football coach
- Billy Riggs, American author, city planner, entrepreneur, and professor of management
- Billy Riker, American member of progressive rock band 3
- Billy Riley, English professional wrestler
- Billy Ringrose, English cricketer
- Billy Ringrose (equestrian), Irish equestrian
- Billy Ritchie, Scottish professional footballer
- Billy Ritchie (musician), Scottish keyboard player and composer
- Billy Roberts (disambiguation), several people
- Billy Robinson (disambiguation), several people
- Billy Robson, English footballer
- Billy Roche, Irish playwright and actor
- Billy Rodaway, English footballer and manager
- Billy Roe, American racing driver
- Billy Rogell, American MLB player
- Billy Rogers (disambiguation), several people
- Billy Rohr, American attorney and MLB starting pitcher
- Billy Ronson, English NASL- and MISL player
- Billy Rooks, English footballer
- Billy Root (disambiguation), several people
- Billy Rose, American impresario, theatrical showman, lyricist, and columnist; husband of Fanny Brice
- Billy Rose (curler), Canadian curler
- Billy Rosen, American bridge player
- Billy Ross, Irish international rugby union player
- Billy Rowesome, Irish sportsperson
- Billy Ruane, American music promoter
- Billy Rudd, English footballer
- Billy Rudd (Australian footballer), Australian VFL player
- Billy Ruge, American film actor
- Billy Russell (disambiguation), several people
- Billy Ryan, American college football player
- Billy Ryan (hurler), Irish hurler
- Billy Ryckman, American NFL player
- Billy Rymer, American musician
- Billy Sadler, American MLB relief pitcher
- Billy Sage, English professional footballer
- Billy Sammeth, American talent manager, writer, and television producer- and personality
- Billy Sample, American MLB player
- Billy Sanders, Australian international Speedway rider
- Billy Sandow, American professional wrestler and promoter
- Billy Sands, American character actor
- Billy Santoro, American gay pornographic film actor
- Billy Sarll, Australian VFL player
- Billy Sass-Davies, Welsh professional footballer
- Billy Saunders, Canadian WHL player
- Billy Savidan, New Zealand long distance runner
- Billy Sawilchik, American musical artist; member of alternative rock band Lovehammers
- Billy Scannell, Irish rugby union player
- Billy Scarratt, English footballer
- Billy Schaeffer, American ABA player
- Billy Schmidt, Australian VFA and VFL player
- Billy Schrauth, American college football player
- Billy Schuler, American professional soccer player
- Billy Schwer, English professional boxer
- Billy Scott (disambiguation), several people
- Billy Seamon, American bridge player
- Billy Searle, English rugby union player
- Billy Sela, English rugby union player
- Billy Sellars, English professional footballer
- Billy Semple, Scottish professional footballer
- Billy Serad, American MLB pitcher
- Billy Seymour, Irish hurler
- Billy Shantz, American MLB player and manager
- Billy Sharp, English professional footballer
- Billy Shaw, American AFL player
- Billy Shaw (Australian footballer), Australian VFL player
- Billy Shearman, English footballer
- Billy Shearsby, Australian track cyclist
- Billy Sheehan, American bassist
- Billy Sheehan (Gaelic footballer), Irish Gaelic football manager and player
- Billy Sheehan (rugby union), Australian rugby union player
- Billy Shepherd (disambiguation), several people
- Billy Shergold, Welsh professional footballer
- Billy Sheridan (disambiguation), several people
- Billy Sherrill, American record producer, songwriter, and arranger
- Billy Sherring, Canadian athlete
- Billy Sherrington, English football manager and businessman
- Billy Sherwood, American multi-instrumentalist, songwriter, singer, record producer, and mixing engineer
- Billy Shields, American NFL player
- Billy Shilton, English Paralympic table tennis player
- Billy Shindle, American MLB player
- Billy Shipp, Canadian CFL player
- Billy Shipstad, American curler
- Billy Shotts, birth name of Lee Clayton, American songwriter and musician
- Billy Shreve, American politician and realtor
- Billy Silto, English footballer
- Billy Silverman, American professional wrestling referee
- Billy Simmonds, Australian entrepreneur, martial artist, and veganism activist
- Billy Simmons, African-born American Jewish scholar and newspaper deliverer
- Billy Simons, American singer-songwriter
- Billy Simpson (disambiguation), several people
- Billy Sims, American NFL player
- Billy Sinclair, American convicted murderer
- Billy Sinclair (footballer), Scottish professional footballer
- Billy Sing, Australian soldier during World War I
- Billy Singh, Fijian football coach
- Billy Singleton, American BBL player
- Billy Sipple, American man known for intervening to prevent an assassination attempt against U.S. President Gerald R. Ford
- Billy Six, German independent journalist, activist, author, and vlogger
- Billy Slade, Welsh cricketer
- Billy Slater, Australian professional rugby league footballer
- Billy Slater (footballer), English footballer
- Billy Slaughter, American film- and television actor
- Billy (slave), African-American slave accused of treason
- Billy Sleeth, American soccer player
- Billy Smart (disambiguation), several people
- Billy Smiley, American Christian music producer, songwriter, and musician
- Billy Smith (disambiguation), several people
- Billy Smyth, Northern Irish footballer
- Billy Snaddon, Scottish professional snooker player
- Billy Snedden, Australian politician
- Billy Snoddy, Northern Irish politician
- Billy Soose, American boxer
- Billy Sorrell, American MLB player
- Billy Sothern, American lawyer
- Billy Southworth, American MLB player
- Billy Southworth Jr., American MLB player and World War II Army bomber pilot
- Billy Sowden, English professional footballer
- Billy Spanoulis, Greek NBA player and coach
- Billy Spears, Australian VFL player
- Billy Spence, Northern Irish politician
- Billy Spencer, English footballer
- Billy Sperrin, English footballer and coach
- Billy Spiller, Welsh rugby union player and cricketer
- Billy Spittle, English professional footballer
- Billy Spivey, American politician
- Billy Sprague, American Christian pop singer, songwriter, and producer
- Billy Spurdle, Guernsey-born English footballer
- Billy Squier, American musician, singer, and songwriter
- Billy Stack, English footballer
- Billy Stacy, American NFL player
- Billy Stage, English professional association footballer
- Billy Stagg, English footballer
- Billy Stairmand, New Zealand surfer
- Billy Stamps, American football player and coach
- Billy Standridge, American stock car racing driver
- Billy Stanlake, Australian cricketer
- Billy Stanton, Irish hurler
- Billy Stark, Scottish footballer and coach
- Billy Stark (footballer, born 1937), Scottish professional footballer
- Billy Stead, New Zealand rugby union player
- Billy Stedman, English professional footballer
- Billy Steel, Scottish professional footballer
- Billy Steele (disambiguation), several people
- Billy Steinberg, American songwriter, musician, and record producer
- Billy Stelling, South African-born Dutch cricketer
- Billy Stephens, Australian VFL player
- Billy Steuart, South African swimmer
- Billy Stevens, American NHL and AFL player
- Billy Stevens (Australian footballer), Australian VFL player
- Billy Stewart (disambiguation), several people
- Billy Stiles, American outlaw in the Old West
- Billy Stockman Tjapaltjarri, Anmatyerr Australian artist
- Billy Stokes, Australian professional rugby league footballer
- Billy Stone (disambiguation), several people
- Billy Stott, English professional rugby league footballer
- Billy Strachan, British communist, civil rights activist, and pilot
- Billy Strange, American singer, songwriter, musician, guitarist, and actor
- Billy Straus, American music producer and songwriter
- Billy Strayhorn, American jazz composer, pianist, lyricist, and arranger
- Billy Stretch, Australian AFL player
- Billy Strings, American guitarist, singer, songwriter, and bluegrass musician
- Billy Stritch, American composer, arranger, vocalist, and jazz pianist
- Billy Strother, American NFL player
- Billy Stuart, Canadian NHL player
- Billy Suede, Canadian professional wrestler
- Billy Sullivan (disambiguation), several people
- Billy Sunday, American evangelist and professional baseball player
- Billy Sutcliffe, English cricketer
- Billy Suter, American football- and baseball player, coach, referee, athletic director, and newspaper publisher
- Billy Swan, American country singer-songwriter
- Billy Sweetzer, Canadian professional soccer player
- Billy Sweezey, American AHL and NHL player
- Billy Syahputra, Indonesian actor, presenter, and comedian
- Billy Tabram, Welsh footballer
- Billy Talagi, Niuean politician
- Billy Talbot, American singer-songwriter and musician; member of Crazy Horse
- Billy Talen, American performance group leader
- Billy Tan, Malaysian comic book artist
- Billy Tang, Hong Kong film director
- Billy Tanner, American professional stock car racing driver
- Billy Tauzin, American lobbyist and politician
- Billy Taylor (disambiguation), several people
- Billy Teall, English professional rugby league footballer
- Billy Teare, Northern Irish storyteller
- Billy Te Kahika, New Zealand conspiracy theorist, blues musician, and political candidate; son of Billy TK
- Billy Telford, English professional footballer
- Billy Tempest, English footballer
- Billy Tennant, South African professional flowboarder
- Billy Tennant (footballer), English professional footballer
- Billy Ternent, English orchestra leader
- Billy Terrell, English professional footballer
- Billy Thirlaway, English professional footballer
- Billy Thomas (disambiguation), several people
- Billy Thompson (disambiguation), several people
- Billy Thomson (disambiguation), several people
- Billy Thornton (disambiguation), several people
- Billy Thorpe, English-born Australian singer-songwriter, record producer, guitarist, and writer
- Billy Thunderkloud, Canadian First Nation country musician
- Billy Tibbetts, American NHL player
- Billy Tidwell, American NFL player
- Billy Timmins, Irish politician
- Billy Tipton, American jazz musician, bandleader, and talent broker
- Billy Tjampitjinpa Kenda, Pitjantjatjara and Luritja artist
- Billy TK, New Zealand Māori musician, guitarist, vocalist, and songwriter
- Billy Todd, American member of Southern Gospel quartet Florida Boys
- Billy Tohill, American football player and coach
- Billy Tolley, American contestant on Ghost Adventures
- Billy Tompkinson, English footballer
- Billy Toms, Irish footballer
- Billy Tourtelot, American singer, guitarist, and songwriter for heavy metal and industrial band Hell on Earth
- Billy Traber, American MLB pitcher
- Billy Travis, American professional wrestler
- Billy Treacy, Irish rugby league footballer
- Billy Tremelling, English professional footballer
- Billy Trew, Welsh international rugby union player
- Billy Tripp, American outsider artist, poet, writer, painter, welder, and sculptor
- Billy Troughear, English footballer
- Billy Truax, American NFL player
- Billy Trumble, Australian cricketer
- Billy Tsikrikas, Australian-born Greek international rugby league footballer
- Billy Tubbs, American men's college basketball coach
- Billy Tucci, American comics creator
- Billy Tucker, English professional footballer
- Billy Tudor, Welsh professional footballer
- Billy Tuft, English professional association footballer
- Billy Tunnicliffe, English professional footballer
- Billy Tunnicliffe (footballer, born 1864), English footballer
- Billy Turley, English footballer
- Billy Turner, American Thoroughbred flat racing trainer
- Billy Turner (American football), American NFL player
- Billy Twelvetrees, English rugby union footballer
- Billy Twemlow, English footballer
- Billy Twomey, Irish equestrian and show jumping rider
- Billy Two Rivers, Canadian Mohawk professional wrestler, actor, and Mohawks of Kahnawà:ke leader
- Billy Tyler, English professional footballer
- Billy Uhl, American professional motorcycle enduro competitor
- Billy Unger, American actor
- Billy Urbanski, American MLB player
- Billy Urquhart, Scottish professional footballer
- Billy Usselton, American jazz reed player
- Billy V, American veteran radio broadcast personality, television reporter- and personality, entertainer, emcee, and actor
- Billy Valentine, American blues-, R&B-, and jazz pianist and singer
- Billy Valentine, American singer
- Billy Van (disambiguation), several people
- Billy Varga, American professional wrestler and actor
- Billy Vassiliadis, American business executive of R&R Partners
- Billy Vaughn, American musician, singer, multi-instrumentalist, orchestra leader, and A&R man
- Billy Venturini, American professional stock car racing driver and team owner
- Billy Vera, American singer, songwriter, actor, author, and music historian
- Billy Vessels, American WIFU- and CFL player
- Billy Vojtek, Croatian-born Australian soccer player
- Billy Volek, American NFL player
- Billy Vukovich III, American race car driver
- Billy Vunipola, Australian-born British professional rugby union player
- Billy Waddy, American NFL player
- Billy Wade (disambiguation), several people
- Billy Wagner III, American man charged with murder in the Pike County shootings
- Billy Waith, Welsh boxer
- Billy Walik, American NFL, WFL, and CFL player
- Billy Walkabout, Native American soldier during the Vietnam War
- Billy Walker (disambiguation), several people
- Billy Walsh (disambiguation), several people
- Billy Wease, American racing driver
- Billy Weber, American film editor and director
- Billy Webster, English professional footballer
- Billy Wedlock, English footballer
- Billy Weepu, New Zealand rugby league footballer
- Billy Wells, English boxer
- Billy Wells (American football), American NFL- and AFL player
- Billy Wells (footballer), Australian VFL player
- Billy Welsh, Scottish professional footballer
- Billy Welu, American professional bowler, PBA executive, and bowling broadcaster- and ambassador
- Billy Werber, American MLB player
- Billy Werner, American musician, singer, songwriter, and DJ
- Billy Wesley, American politician
- Billy Westbay, American rock climber
- Billy West (disambiguation), several people
- Billy Weston, Australasian billiards champion
- Billy Walker (disambiguation), several people
- Billy Wallace, New Zealand rugby union footballer and foundryman
- Billy Wallace (socialite), British socialite
- Billy Walters (disambiguation), several people
- Billy Walton, English footballer
- Billy Walton (hurler), Irish hurler
- Billy Wara, Australian Aboriginal craftsman
- Billy Warbrick, New Zealand rugby union footballer
- Billy Ward (disambiguation), several people
- Billy Wardle, English professional footballer
- Billy Warlock, American actor
- Billy Wasmund, American football player and coach
- Billy Waters (disambiguation), several people
- Billy Watkin, English footballer
- Billy Watkins (disambiguation), several people
- Billy Watson (disambiguation), several people
- Billy Watts (disambiguation), several people
- Billy Waugh, American soldier and paramilitary operations officer
- Billy Waugh (footballer), Scottish footballer
- Billy Wayne (disambiguation), several people
- Billy Wayte, American CFL player
- Billy Wharton, American adult educator, political writer, and activist
- Billy Wheatley, English professional footballer
- Billy Whelan, Irish footballer
- Billy Whelan (Scottish footballer), Scottish footballer
- Billy Whitaker, English professional footballer
- Billy White (disambiguation), several people
- Billy Whitehouse, English professional footballer
- Billy Whitehurst, English professional footballer
- Billy Whitlock, American blackface performer
- Billy Wilder, American filmmaker and screenwriter
- Billy Wiles, American professional wrestler
- Billy Wiles (American football), American college football player
- Billy Wilkins, American past member of Christian rock band Third Day
- Billy Wilkinson, Scottish professional footballer
- Billy Williams (disambiguation), several people
- Billy Williamson (disambiguation), several people
- Billy Wilson (disambiguation), several people
- Billy Wilton, Australian VFL player
- Billy Windle, English footballer
- Billy Wingrove, English member of freestyle football duo F2Freestylers
- Billy Winn (disambiguation), several people
- Billy Winstanley, English professional rugby league footballer
- Billy Winward, Australian VFL player
- Billy Wirth, American Hollywood actor, film producer, and fashion model
- Billy Withall, British Army soldier
- Billy Wolfe, American professional wrestling promoter
- Billy Wolfe (politician), Scottish accountant, manufacturer, and politician
- Billy Wood, Australian VFL player
- Billy Wood (footballer, born 1900), English footballer
- Billy Woodberry, American film director
- Billy Woodford, British founder of record label NoCopyrightSounds
- Billy Woods (disambiguation), several people
- Billy Woodward (disambiguation), several people
- Billy Wooldridge, English footballer
- Billy Wootton, English footballer
- Billy Wright (disambiguation), several people
- Billy Wynne (disambiguation), several people
- Billy Yates (disambiguation), several people
- Billy Yeats, English footballer
- Billy Yenson, English professional footballer
- Billy Young (disambiguation), several people
- Billy Younger, English footballer
- Billy Yow, American candidate in the 2010 United States House of Representatives elections in North Carolina
- Billy Yule, American musician
- Billy Zane, American actor
- Billy Zane Muna, American member of heavy metal band Sicmonic
- Billy Zeoli, American evangelical leader, speaker, and media executive
- Billy Zero, American radio personality
- Billy Zitzmann, American MLB player
- Billy Zoom, American guitarist; member of punk rock band X
- Billy Zulch, South African international cricketer
- Billy Zver, Macedonian rapper
Fictional
- Billy Casper, in the 1968 UK novel A Kestrel for a Knave
- Billy Conway, in the 2009 Australian coming-of-age comedy drama film Accidents Happen, played by Harrison Gilbertson
- Billy (Billy and Mandy), in the US animated TV series The Grim Adventures of Billy and Mandy, voiced by Richard Steven Horvitz
- Billy (Black Christmas), in the Canadian-US horror film series Black Christmas
- Billy Abbott, in the US TV soap opera The Young and the Restless
- [Billy and the Big (film)|Big Stick|Billy Barlow], in the 1917 US silent comedy drama film Billy and the Big Stick, played by Raymond McKee
- Billy Baker (disambiguation), several characters
- Billy Bathgate, in the 1989 US novel of the same name
- Billy Batson, in the all-ages comic book series Billy Batson and the Magic of Shazam!
- Billy Bedlam, in the 1997 US action thriller film Con Air, played by Nick Chinlund
- Billy Bibbit, in the 1962 US novel One Flew Over the Cuckoo's Nest
- Billy Black (character), in the fantasy romance Twilight novels, played by Gil Birmingham in the films
- Billy Blade, in the 2005 action-adventure video game Billy Blade and the Temple of Time
- Billy Blaze, in the Commander Keen series of side-scrolling platform video games
- Billy Bleach, in the comedy sketch show The Fast Show, played by Simon Day
- Billy Blim, in the US supernatural TV series Angel, played by Justin Shilton
- Billy Bones, in the 1883 Scottish novel Treasure Island, by Robert Louis Stevenson
- Billy Braddock, alter ego of UK superhero Spider-UK appearing in US Marvel comic books
- Billy Brit, UK puppet character
- Billy Brodie, in the UK soap opera Hollyoaks, played by Clive Russell and Rian Gordon
- Billy Budd, the title character of the US novella by Herman Melville
- Billy Bunter, schoolboy created by Charles Hamilton
- Billy Butcher, in the US media franchise The Boys, played by Karl Urban, Jason Isaacs, and Kay Eluvian
- Billy Chapel (character), in the 1991 US novel For Love of the Game
- Billy Chapman (character), in the US Christmas horror film series Silent Night, Deadly Night
- Billy Chenowith, in the US drama TV series Six Feet Under, played by Jeremy Sisto
- Billy Coen, in the survival horror video game Resident Evil Zero
- Billy Colton, in the US action-adventure TV series MacGyver, played by Cuba Gooding Jr. and Lance Gross
- Billy Connors (character), in US Marvel comic books
- Billy Corkhill, in the UK TV soap opera Brookside, played by John McArdle
- Billy Costigan, in the 2006 crime thriller film The Departed, played by Leonardo DiCaprio
- Billy Cranston, the Blue Ranger in the US superhero TV series Mighty Morphin Power Rangers
- Billy Crocker (Anything Goes), in the 1930s musical Anything Goes
- Billy Cutshaw, in the 1980 US psychological drama film The Ninth Configuration, played by Scott Wilson
- Billy Dane, in the UK comic strip Billy's Boots
- Billy Dilley, in the US animated TV series Billy Dilley's Super-Duper Subterranean Summer, voiced by Aaron Springer
- Billy Douglas (One Life to Live), in the US soap opera One Life to Live, played by Ryan Phillippe
- Billy Fletcher, in the UK TV soap opera Emmerdale, played by Jay Kontzle
- Billy Flynn (Chicago), in the 1926 play Chicago, played by Edward Ellis
- Billy Grade, in the UK period crime drama TV series Peaky Blinders, played by Emmett J. Scanlan
- Billy Hargrove, in the US science fiction horror TV series Stranger Things, played by Dacre Montgomery
- Billy Hopwood, in the UK TV soap opera Emmerdale, played by David Crellin
- Billy Kane, in the Fatal Fury fighting game series
- Billy Kaplan, superhero appearing in US Marvel comic books published
- Billy Katagiri, in the Japanese anime TV series Mobile Suit Gundam 00, voiced by Yūji Ueda and Kirby Morrow
- Billy Keikeya, in the 2004 US TV series Battlestar Galactica, played by Paul Campbell
- Billy Kennedy (disambiguation), several characters
- Billy Kessler, in the comic book series G.I. Joe: A Real American Hero
- Billy Kincaid, in the comic book series Spawn
- Billy Kong, in the UK fantasy novel series Artemis Fowl
- Billy Lamb, in the UK TV drama series Silk, played by Neil Stuke
- Billy Lee (disambiguation), several characters
- Billy Leotardo, in the US crime drama TV series The Sopranos, played by Chris Caldovino
- Billy Lewis (disambiguation), several characters
- Billy Loomer, in the US live action sitcom Ned's Declassified School Survival Guide, voiced by Kyle Swann
- Billy Mack, in the 2003 Christmas romantic comedy film Love Actually, played by Bill Nighy
- Billy Madison, in the 1995 US comedy film Billy Madison, played by Adam Sandler
- Billy Makin, in the UK TV soap opera Coronation Street, played by Jimmy Ogden
- Billy Mallett, in the UK TV soap opera Coronation Street, played by Lewis Ablatt
- Billy Malone, in the US superhero TV series Arrow, played by Tyler Ritter
- Billy Mayhew, in the UK TV soap opera Coronation Street, played by Daniel Brocklebank
- Billy Miles (The X-Files), in the US science fiction drama TV series The X-Files, played by Zachary Ansley
- Billy Mitchell (EastEnders), in the UK TV soap opera EastEnders, played by Perry Fenwick and George Greenland
- Billy Owens, in the 2010 fantasy film Billy Owens and the Secret of the Runes, played by Dalton Mugridge
- Billy Pilgrim, in Kurt Vonnegut's 1969 novel Slaughterhouse-Five
- Billy Platt, in the UK TV soap opera Coronation Street
- Billy Prior, in the Regeneration Trilogy novels
- Billy Quan, in the US sketch comedy TV series Almost Live!, played by Darrell Suto
- Billy Quizboy, in the US adult animated action comedy TV series The Venture Bros., voiced by Doc Hammer
- Billy Ray Valentine, in the 1983 US comedy film Trading Places, played by Eddie Murphy
- Billy Rowan, in the UK TV drama The Bill series 23
- Billy Shoepack, in the 1989 UK children's TV series Tugs, voiced by Lee Cornes, Masaaki Madono, Rokurō Naya, and Paul Dobson
- Billy Smith (disambiguation), several characters
- Billy Sole, in the US science fiction action anthology media franchise Predator, played by Sonny Landham
- Billy Sparks, in the US TV sitcom The Big Bang Theory, played by Wyatt McClure
- Billy the Bee, UK newspaper comic strip during the 1950s
- Billy the Bionic Badger, in the Canadian underground comic strip Space Moose
- Billy the Cat (disambiguation), several people
- Billy Thompson, in the UK cartoon strip Billy the Fish
- Billy the Marlin, the official mascot of the Miami Marlins baseball franchise
- Billy the Mime, in the 2005 US documentary comedy film The Aristocrats, played by Steven Banks
- Billy the Puppet, in the US horror media franchise Saw, voiced by Tobin Bell and Costas Mandylor
- Billy Walsh (Third Watch), in the US crime drama TV series Third Watch, played by Bill Walsh
- Billy Wayne Ruddick, in the US political satire mockumentary-style TV series Who Is America?, played by Sacha Baron Cohen
- Billy Whizz, in the UK comic The Beano
- Billy Williams (Coronation Street), in the UK TV soap opera Coronation Street, played by Frank Mills
- Billy-Ben Turner, in the US fantasy science fiction horror anthology TV series The Twilight Zone
- Billy Bibit, in the 1994 Philippine biographical action film Col. Billy Bibit, RAM, played by Rommel Padilla
- Billy Walker, in the UK TV soap opera Coronation Street, played by Kenneth Farrington
- Billy Goat, in the Donald Duck universe
- Billy Joe Cobra, in the 2013 UK-French animated TV series Dude, That's My Ghost!, voiced by Darren Foreman
- Billy Brennan, in the 2001 US science fiction action film Jurassic Park III, played by Alessandro Nivola
- Billy Campbell, in the US prime-time TV soap opera Melrose Place, played by Andrew Shue
- Billy Davis, in the UK TV soap opera River City, played by Gray O'Brien
- Billy Claimers, in the US post-apocalyptic horror drama TV series The Walking Dead, played by Eric Mendenhall
- Billy, in the UK mystery Sherlock Holmes novel series
- Billy Black, one of J. D. Salinger's short story characters
- Billy Bauer, in the UK science fiction anthology TV series Black Mirror, played by Topher Grace
- Billy Bradshaw, in the UK family created and voiced by Buzz Hawkins
- Billy, in the US comedy TV series The Comedians, played by Billy Crystal
- Billy Cole, in the 1991 US buddy action comedy film The Last Boy Scout, played by Billy Blanks
- Billy Bob Brockali, in the animatronic character band The Rock-afire Explosion, voiced by Aaron Fechter
- Billy West, in the US animated science fiction sitcom Futurama
- Billy Zero, in the 2007 Canadian psychological drama film The Tracey Fragments, played by Slim Twig
- Billy McCormack, in the UK TV sitcom Two Pints of Lager and a Packet of Crisps, played by Freddie Hogan
- Billy Apples, in the 1995 Australian musical film Billy's Holiday, played by Max Cullen
- Billy Bat, a talking anthropomorphic bat in the Japanese manga series of the same name
- Billy Blazes, in the 1919 US short comedy film Billy Blazes, Esq., played by Harold Lloyd
- Billy Chadwick, in the US police procedural series CSI: Miami, played by Lew Temple
- Billy Collier, in the 1998 US independent romantic comedy film Billy's Hollywood Screen Kiss, played by Sean Hayes
- Billy Elliot, in the 2000 UK coming-of-age comedy-drama film Billy Elliot, played by Jamie Bell and Adam Cooper (dancer)
- Billy Fisher, in the 1963 UK CinemaScope comedy-drama film Billy Liar; based on the 1959 novel of the same name, played by Tom Courtenay
- Billy Francis Kopecki, in the 1988 US fantasy comedy-drama film Big, played by Jared Rushton
- Billy Galvin, in the 1986 US drama film Billy Galvin, played by Lenny Von Dohlen
- Billy Grant, in the 1993 action/martial arts film Showdown, played by Billy Blanks
- Billy Grey, in the 2009 video game expansion pack Grand Theft Auto: The Lost and Damned
- Billy Hitchcock, in the US horror franchise Final Destination, played by Seann William Scott
- Billy Jack, in the 1971 US action drama independent film Billy Jack, played by Tom Laughlin, and in the 1977 sequel
- Billy Jim, in the 1922 US silent comedy western film Billy Jim, played by Fred Stone
- Billy Jo Jive, animated character in the US educational children's TV series Sesame Street, voiced by Ray Favata
- Billy K, in the Canadian musical drama TV series Catwalk, played by J. H. Wyman
- Billy Kid, in the 2024 action role-playing video game Zenless Zone Zero, voiced by Chen Runqiu, Clifford Chapin, Yū Hayashi, and Lee Jo-seung
- Billy Kimber, in the UK period crime drama TV series Peaky Blinders, played by Charlie Creed-Miles; based on the real Billy Kimber
- Billy Loomis, in the 1996 US slasher film Scream, played by Skeet Ulrich
- Billy Lynn, in the 2012 satirical war novel Billy Lynn's Long Halftime Walk; played by Joe Alwyn in the 2016 war drama film adaptation
- Billy MacGregor, in the US sitcom TV series Head of the Class; and its spin-off Billy, played by Billy Connolly
- Billy Masterson, in the 1997 English-language French science fiction action film The Fifth Element, played by Luke Perry
- Billy Nolan, antagonist in Stephen King's Carrie
- Billy Peltzer, in the 1984 and 1990 US comedy horror films Gremlins and Gremlins 2: The New Batch, played by Zach Galligan
- Billy Quinn, in the 1989 US-Canadian Christmas fantasy drama film Prancer, played by Johnny Galecki
- Billy Russo, alternate name of supervillain Jigsaw, appearing in US comic books published by Marvel Comics
- Billy Summers, in the 2021 US crime novel Billy Summers
- Billy Sunday, in the 1995 Australian novel Billy Sunday
- Billy Sunday, in the 2000 US drama film Men of Honor, played by Robert De Niro
- Billy Tate, in the US sitcom TV series Soap, played by Jimmy Baio
- Billy Thunderman, in the US comedy TV series The Thundermans, played by Diego Velazquez
- Billy Two Hats, in the 1974 US Western film Billy Two Hats, played by Desi Arnaz Jr.
- Billy Twofeathers, in the children's TV series Shining Time Station, played by Tom Jackson (actor)
- Billy, a hamster character in Billy The Cowboy Hamster and Dudley Do-Right, played by Jim Conroy
- Billy, in the 1936 US children's picture book Billy and Blaze
- Billy, the stage name for Bill the Cat in the 1987 comic strip collection Billy and the Boingers Bootleg by Berkeley Breathed.
- Billy, in the 2003 3D platform game Billy Hatcher and the Giant Egg
- Billy, in the Franco-Belgian comic Billy the Cat
- Billy, in the UK children's TV series Thomas & Friends
- Billy, in the Uruguayan animated TV series Billy the Krill
- Billy, in the US animated TV franchise Adventure Time, voiced by Lou Ferrigno
- Sport Billy, in the US animated TV series Sport Billy, voiced by Lane Scheimer