List of racehorses

This list includes racehorses that exist in the historical record.

Racehorses

For competition horses, such as show jumpers and dressage horses, see.

A

Ace Impact: Undefeated winner of the 2023 Prix de l'Arc de Triomphe
Adios Butler: Famous harness racer
Admire Groove: winner of the 2003 and 2004 Queen Elizabeth II Cup
Admire Vega: winner of the 1999 Japanese Derby
Affirmed: Triple Crown of [Thoroughbred">British Fillies Triple Crown">Triple Crown of [Thoroughbred Racing|U.S. Triple Crown] winner
Agnes Digital: American born Japanese racehorse known for winning the 2001 Tenno Sho, the 2001 Hong Kong Cup, and the 2003 Yasuda Kinen
Agnes Tachyon: Undefeated 2001 Satsuki Sho winner
Air Groove: Winner of the 1996 Yushun Himba
Air Shakur: Winner of the 2000 Satsuki Sho and Kikuka Sho
Ajax: 18 consecutive race wins, before he was defeated at 1/40
Albatross: Harness racer who won 59 of 71 races, and as a sire produced winners of over $130 million, including Niatross
Allez France: French Arc winner and first filly to win a million dollars
Alydar: Finished second to Affirmed in all three 1978 Triple Crown races; successful sire
Almond Eye: Won 9 G1 races, including all three of the Japanese Fillies' Triple Crown in 2018
American Pharoah: 2015 winner of the U.S. Triple Crown and Breeders' Cup World Championships in Lexington, Kentucky at Keeneland Race Course
Animal Kingdom: American Thoroughbred racehorse; won 137th Kentucky Derby and 2013 Dubai World Cup
Apapane: 2010 Japanese Fillies' Triple Crown winner
Archer: First and second winner of the Melbourne Cup
Aristides: Winner of the first Kentucky Derby
Arrogate: Winner of Travers Stakes, Breeders' Cup Classic, Pegasus World Cup, and Dubai World Cup in track record time and the richest U.S.-based racehorse of all time
Arkle: Highest Timeform rating for a steeplechase horseracer
Assault: U.S. Triple Crown winner
Auguste Rodin: Winner of both the Epsom and Irish Derbies of 2023, as well as the Breeders' Cup Turf of the same year

B

Battleship was an American thoroughbred racehorse who is the only horse to have won both the American Grand National and the Grand National steeplechase races.
Barack Obama, named after the 44th President of the United States, was a New Zealand horse that competed in international endurance events.
Barbaro: American Thoroughbred who decisively won the 2006 Kentucky Derby, but shattered his leg two weeks later in the 2006 Preakness Stakes, ending his racing career; underwent several operations; eventually healed, but developed laminitis and could not be saved; euthanized January 29, 2007
Bayu Kartika: 1977 Indonesia Derby Winner
Beauty Eagling: 2015 Indonesia Derby Winner
Beholder: winner of the Breeder's Cup Juv. Fillies, two-time winner of the Breeders' Cup Distaff, as well as the first filly to win the Pacific Classic
Bernborough: Australian racehorse and winner of 15 consecutive races at big weights; sold to US film producer Louis B. Mayer
Ben Nevis: champion Maryland steeplechaser he won the Maryland Hunt Cup twice and the Grand National
Bend Or: very successful British Thoroughbred racehorse who won the 1880 Epsom Derby
Best Mate: 2002, 2003 and 2004 Cheltenham Gold Cup winner; often given title 'Greatest Steeplechaser' since Arkle, and an equal to him
Big Ben: 1990 Indonesia Derby Winner
Big Brown: 2008 Kentucky Derby and Preakness Stakes winner; first horse since Clyde Van Dusen to win the Kentucky Derby from the 20th post position
Black Caviar: undefeated in 25 career starts; fifteen-time Group 1 winner
Bold Forbes: 1976 Kentucky Derby and Belmont Stakes winner
Bold Ruler: leading sire of stakeswinners; born in the same barn the same night as Round Table; sired the outstanding Secretariat
Brave Heart: 2007 Indonesia Derby Winner
Brian's Time: American-trained racehorse with a successful stud career in Japan
Bret Hanover: one of only nine pacers to win the Triple Crown of Harness Racing for Pacers; had 62 wins from 69 starts; the only horse to be made Harness Horse of the Year three times
Brigadier Gerard: winner of 17 of 18 races in England, including the 2000 Guineas and 11 other Group I races; joint third highest Timeform flat rating of all time
Buckpasser: won 15 consecutive races; one of the great broodmare sires
Buena Vista: Won 6 Grade I races, including two of the Japanese Triple Tiara in 2009
Byzantine Dream: active Japanese racehorse and 2025 Prix Foy winner; came second in the 2025 Tenno Sho to Redentor

C

Cahaya Nagari: 2010 Indonesia Derby Winner
California Chrome: won the 140th Kentucky Derby; won the Preakness; won the 2016 Dubai World Cup; two-time American Horse of the Year
Carbine: outstanding racehorse and sire; winner of the Melbourne Cup
Cardigan Bay: New Zealand's "million dollar pacer"; the first to win a million in the US; appeared on The Ed Sullivan Show
Castleshane: winner of eight flat races and two jumps
Cempaka: 1976 Indonesia Derby Winner
Charismatic: winner of the 1999 Kentucky Derby and Preakness Stakes
Charles the Twelfth: winner of the St Leger Stakes in the year 1839.
Cicero: winner of the 1905 Epsom Derby as the shortest-priced successful favourite in the history of the event
Cigar: champion in the 1990s who won 16 consecutive races
Cinderella Jatim: 2019 Indonesia Derby Winner
Citation: U.S. Triple Crown winner ; also won 16 consecutive major stakes races; first horse to earn $1 million
Clairiere: winner of the 2021 edition of the Cotillion Stakes and 2-time winner of the Ogden Phipps Stakes in both 2022 and 2023.
Codex: winner of the 1980 Preakness Stakes
Cody's Wish: 2022 and 2023 Breeders' Cup Dirt Mile winner, 2023 American Horse of the Year named after the late Cody Dorman who was born with Wolf-Hirschhorn Syndrome, he lived a long life until he died from the same disease on November 6th 2023 after he suffered a medical event.
Contrail: 2020 Japanese Triple Crown winner
Country House: Winner of Kentucky Derby 2019 after Maximum Security was demoted from 1st place for interference with other horses
Crisp: remembered for his epic race in the Grand National with Red Rum
Curlin: third richest US-based horse of all time, winner of 2007 Preakness Stakes and Breeders' Cup Classic and 2008 Dubai World Cup
Curren Chan: Japanese racehorse known for winning five consecutive sprint races and two JRA Awards

D

Daiwa Scarlet: First filly in 37 years to win the Arima Kinen
Dan Patch: America's greatest pacer
Danehill: American-bred and British-trained sprint champion who went on to become a champion sire in both the northern and southern hemispheres; the first major "shuttle stallion"
Dance Smartly: second Canadian filly ever to win the Canadian Triple Crown, and the first to win a Breeders Cup Race
Daring Tact: Winner of the Japanese Triple Tiara in 2020
Dawn Run: only horse ever to complete Champion Hurdle, Cheltenham Gold Cup double
Deep Impact: Japanese Triple Crown winner; also smashed the world record over 3200 metres until it was surpassed by Kitasan Black in 2017 and seven-time leading sire in Japan
Desert Gold: race mare who won 19 races successive races during World War I; often raced against Gloaming
Desert Orchid: won King George four times and Cheltenham Gold Cup
Dewi Milenia: 2003 Indonesia Derby Winner
Djohar Manik: Indonesia Triple Crown Winner, won 37 of the 41 races she participated in, the third Triple Crown Winner in Indonesia.
Doncaster: very successful racehorse, sire of the great Bend Or
Dornoch: 2024 Belmont Stakes winner
Dr. Fager: "the Doctor"; set the world record at 1 mile on any surface, 1:32 1/5, and held it for more than 20 years. The only horse in American history who in 1968 won 'Racings Grand Slam'.
Dragon Runner: 2016 Indonesia Derby Winner
Dream Journey: Winner of 3 GI races, including the Takarazuka and Arima Kinen of 2009. Full brother of Orfevre.
Duramente: Japanese Derby winner, sired Titleholder and Liberty Island
Durandal: winner of 2003 Sprinters Stakes
Dynaformer: Sire of Barbaro

E

Easy Goer: Hall of Fame champion who ran the fastest mile of all time on dirt by any three-year-old Thoroughbred in 1:32.2; ran the second fastest Belmont Stakes of all time behind Secretariat; had a great rivalry with Sunday Silence
Eclipse: celebrated 18th-century racehorse that won 18 races in 18 starts; influential sire
Efforia: Winner of 3 Grade I races in Japan.
Eight Belles: first filly to win the Martha Washington Stakes, by a record 13½ lengths
El Condor Pasa: Winner of Grade I races in Japan and France; first Japanese trained horse to finish 2nd in the Prix de l'Arc de Triomphe
Enable: twice winner of the Prix de l'Arc de Triomphe, record three-time winner of the King George VI and Queen Elizabeth Stakes and the 2018 winner of the Breeders' Cup Turf
Epiphaneia: Won the 2013 Kikuka Sho and 2014 Japan Cup; sires the aforementioned Efforia and Daring Tact
Equinox: Two-time winner of the Autumn edition of the Tenno Sho, as well as both Arima and Takarazuka Kinens, and the Dubai Sheema Classic
Exaggerator: winner of the 2016 Preakness Stakes
Exotica Jatim: 2006 Indonesia Derby Winner
Exterminator: exceedingly popular "iron horse" of American racing history

F

Fair Play: successful American Thoroughbred racehorse and very successful sire; sired the great Man o' War
Falling In Love: Indonesian racehorse
Flyingbolt: widely considered as the second best Steeplechaser of all-time; stablemate of Arkle; Timeform rated 210. Rated 1 lb inferior to Arkle by the Official Handicapper
Foolish Pleasure: Winner of the 1975 Kentucky Derby
Forever Young: Winner of the Saudi Cup, Saudi Derby, UAE Derby, Japan Dirt Classic, Tokyo Daishōten, Saudi Cup and the Breeders' Cup Classic. Awarded the JRA Award.
Frankel: undefeated in 14 career starts; highest rated flat race horse in history: WTR 140; Timeform 147, Racing Post 143
Funny Cide: First gelding since Clyde Van Dusen to win the Kentucky Derby

G

Gagah Tanjungsari: 2011 Indonesia Derby Winner
Gainsborough: winner of the English Triple Crown; leading sire
Galigo: 1988 Indonesia Derby Winner
Galileo: seven-time Leading sire in Great Britain & Ireland; sire of Frankel; has sired 102 Group 1 winners worldwide as of December 2015
Gentildonna: Japanese Fillies' Triple Crown winner of 2012 and two-time winner of the Japan Cup
Genuine Risk: second filly to win the Kentucky Derby
Gloaming: won 19 successive races in New Zealand and Australia; record was 67 starts for 57 wins and 9 seconds
Go Man Go: champion running Quarter Horse
Gold Ship: Winner of 6 Grade I races in Japan, two of which was the Takarazuka Kinen
Golden Miller: record five-time winner of the Cheltenham Gold Cup; only horse to win the Cheltenham Gold Cup and Grand National in the same year
Goldencents: American-bred Racehorse and 2-time winner of the Breeders' Cup Dirt Mile in both 2013 and 2014
Golden Sixty: Won the Champions Mile for three years in a row, as well as a number of other GI races in Hong Kong
Goldsmith Maid: famous harness racing mare of the 19th century
Good Magic: winner of the 2017 Breeders Cup: Juvenile, the 2018 Blue Grass Stakes and the 2018 Haskell Stakes
Grass Wonder: Winner of the 1999 Takarazuka and Arima Kinen; sired Screen Hero and Earnestly
Greyhound: named Trotting Horse of the Century in the US
Gunrock: a Thoroughbred stallion who became the mascot of the UC Davis Aggies sports team

H

Haiseiko: Former-NAR racehorse who, after being moved to the JRA, won multiple high stakes races such as the Satsuki Sho and Takarazuka Kinen
Hambletonian 10: the "father of American trotting"
Haru Urara: Became "the shining star of losers everywhere" as she never won a single race in her career.
Hastings: sire of Fair Play, who in turn sired the great Man o' War, successful racehorse
Heart's Cry: Handed Deep Impact his first defeat after clinching the Triple Crown at the 2005 Arima Kinen; also a successful sire
Horlicks: New Zealand Racing Hall of Fame inductee; first filly to win the Japan Cup, as well as the first horse from the Southern Hemisphere to win the race
Hurricane Fly: Irish hurdler, winner of a record 22 Grade I races
Hyperion: winner of The Derby and the St Leger Stakes; top sire for six years in the UK

I

Iroquois: first American-bred racehorse to win The Derby
Indon: 2000 Indonesia Derby Winner
Invasor: winner of the Uruguayan Triple Crown, as well as the Dubai World Cup and Breeders' Cup Classic
I'll Have Another: winner of the 2012 Kentucky Derby and Preakness Stakes
Irish War Cry: Graded-Stakes Winner, noted for his win in the Wood Memorial Stakes and for finishing second in the 2017 Belmont Stakes
Isinglass: sixth winner of the English Triple Crown
Isonomy: very successful racehorse and sire of The English Triple Crown winner Isinglass.
Itsmyluckyday is a multiple graded stakes winner who finished second in the 2013 Preakness Stakes to Oxbow and won the Woodward Stakes in 2014.

J

Jay Trump: three-time winner of the Maryland Hunt Cup and the Grand National
John Henry: U.S. Champion Turf Horse
Johnstown: winner of the 1939 Kentucky Derby and Belmont Stakes
Journalism: 2025 Preakness Stakes winner
Jungle Pocket: 2001 winner of the Japanese Derby and Japan Cup
Justify: 2018 winner of the U.S. Triple Crown
Just A Way: Won the Dubai Duty Free in 2014 at a record time still undefeated as of 2023, becoming the best rated horse that year as a result.

K

Kamang Chrome: 2017 Indonesia Derby Winner
Katsuragi Ace: First Japanese-trained horse to win the Japan Cup
Kauto Star: record five-time winner of the King George VI Chase
Keen Ice: 2015 Travers Stakes winner
Kelso: only five-time U.S. Horse of the Year, in the list of the top 100 U.S. thoroughbred champions of the 20th Century by The Blood-Horse magazine, Kelso ranks 4th
Ken Ayu: 1980 Indonesia Derby Winner
Kincsem: Hungarian race mare and most successful racehorse ever, winning all 54 starts in five countries
Kindergarten: weighted more than Phar Lap in the Melbourne Cup
King Argentin: Indonesia Triple Crown Winner, the fourth Triple Crown Winner in Indonesia
King Halo: Japanese racehorse who won the 2000 Takamatsunomiya Kinen
Kingston: all-time record holder of the most wins by a horse with 89
Kingston Town: won three Cox Plates; first Australian horse to top $1million in stakes earnings
King Kamehameha: Successful race horse and sire in Japan.
Kissin George: one of America's premier sprinting Thoroughbred racehorses
Kitasan Black: Won 7 Grade 1 races in Japan, owned by famous enka singer Saburo Kitajima; sire of Equinox
Knicks Go: 2021 American Horse of the Year

L

La Troienne: most important broodmare of the twentieth century
Lady Aria: 2018 Indonesia Derby Winner
Lady Arion: daughter of Lady Aria
Lady Jay: 2021 Indonesia Derby Winner
Lady Centavo: 1996 Indonesia Derby Winner
Leonardo: 1982 Indonesia Derby Winner
Lexington: America's leading 19th-century sire
Liberty: 1985 Indonesia Derby Winner
Liberty Island: 2023 Japanese Triple Tiara winner
Longfellow: 19th-century runner and stallion
Lonesome Glory: only five-time winner of Steeplechase Horse|American champion steeplechaser]
Lord Kanaloa: Two time winner of both the Sprinters Stakes in Japan and the Hong Kong Sprint
Lottery: winner of the Grand National steeplechase in 1839
Lookin At Lucky: winner of 2010 Preakness Stakes, sired Accelerate and Kentucky Derby winner Country House
Lucky Strike: 1995 Indonesia Derby Winner
Lyana Nagari: 2022 Indonesia Derby Winner

M

Mahubah: Dam of Man o' War
Makybe Diva: Won the Melbourne Cup on three occasions
Malathaat: American Champion Three-Year-Old Filly, American Champion Older Dirt Female Horse and winner of the Ashland Stakes, Kentucky Oaks and Alabama Stakes.
Man o' War: Often considered America's greatest racehorse; won 20 of 21 career starts
Manhattan Cafe: Winner of 3 Japanese Grade I races
Manik Trisula: Indonesia Triple Crown Winner, the second Triple Crown Winner in Indonesia
Maruzensky: Undefeated Japanese racehorse
Master Charlie: winner of the 1924 Remsen Stakes, Tijuana Futurity, Hopeful Stakes, Kentucky Jockey Club Stakes; awarded 1924 American Champion Two-Year-Old-Male/Colt
Matikanefukukitaru: 1997 Kikuka Sho winner
Mawar Melati: 1984 Indonesia Derby Winner
Maximum Security: Winner of Kentucky Derby 2019 before disqualification from 1st place for disturbing other horses
Mayano Top Gun: 1995 Japanese Horse of the Year
Mejiro McQueen: Two-time winner of the Tenno Sho, among other Grade 1 victories
Mejiro Ramonu: First Triple Tiara winner of Japan
Meisho Doto: Defeated by his rival T. M. Opera O in five GI races before defeating him in the 2001 Takarazuka Kinen
Meisho Samson: Winner of the 2007 Spring and Autumn Tenno Sho
Messa: 2009 Indonesia Derby Winner
Might and Power: World Champion Stayer ; Australian Horse of the Year
Milord: Indonesian racehorse
Moifaa: First New Zealand horse to win the Grand National
Mr C. B.: Japanese Triple Crown winner and 1983 Japanese Horse of the Year; inducted into the Japan Racing Association Hall of Fame in 1986
Mr. Prospector: One of the most successful U.S. sires of the late 20th century
Mulawarman: 1991 Indonesia Derby Winner
Mystere: Indonesia Triple Crown Winner, first Triple Crown Winner in Indonesia
Mystik Dan: Winner of the 2024 Kentucky Derby

N

Naga Sembilan: 2025 Indonesian Star of Stars and 2024 Piala Raja Hamengku Buwono X winner
Nakayama Festa: 2010 Takarazuka Kinen winner
Narita Brian: 1994 Japanese Triple Crown winner
Narita Top Road: Winner of the 1999 Kikuka-shō.
Nasrullah: one of the most successful Thoroughbred sires of the 20th century, grandsire to Secretariat
Native Dancer : won 21 of 22 career races, with only loss in the Kentucky Derby; sire whose descendants have come to dominate modern Triple Crown racing
Nearco: Italian bred Thoroughbred racehorse. Thoroughbred Heritage described him as "one of the greatest racehorses of the Twentieth Century" and "one of the most important sires of the century." He was undefeated and his sire line was dominant.
Needles: the first Florida-bred horse to win the Kentucky Derby, also won the Belmont Stakes
Nefertiti: 1999 Indonesia Derby Winner
Nest: multiple Grade 1 events winner
Niatross: pacer who won 37 of his 39 races and broke many records, considered to be one of the greatest harness racers of all time
Nice Nature: Nick-named "The Bronze Collector", Nice Nature became known for finishing third in the Arima Kinen for 3 years in a row, and post-retirement became the focus of a donation drive to help retired horses like himself
Night Raid: sire of Phar Lap
Nijinsky: last horse to win the English Triple Crown
Northern Dancer: Canada's champion on the racetrack; most successful sire of the 20th century
Nyquist: 2016 Kentucky Derby winner

O

Oedipus: winner of the American Steeplechase triple crown
Oguri Cap: JRA Hall of Fame inductee; winner of many G1 races and ushered in an era of heightened popularity of the sport during his racing career
Oju Chosan: Steeplechase race horse who won numerous JG1 races, most notably winning the Nakayama Grand Jump five times in a row.
Opera House: British racehorse who sired T M Opera O
Orb: 2013 Kentucky Derby winner
Orfevre: 2011 Japanese Triple Crown winner, and is one of the highest earning racehorses ever valued almost 20 million US dollars
Overdose: champion Hungarian sprinter and winner of 14 straight races.
Oxbow: 2013 Preakness Stakes winner

P

Panthalassa: First Japanese horse to win the Saudi Cup
Palace Malice: 2013 Belmont Stakes winner
Pejoang: 1981 Indonesia Derby Winner
Peter Pan: winner of the Preakness Stakes, and had the Peter Pan Stakes named in his honor
Permata Rajawali: 1998 Indonesia Derby Winner
Pesona Kurnia: 2005 Indonesia Derby Winner
Pesona Nagari: 2008 Indonesia Derby Winner
Phar Lap: Australia and New Zealand's most famed Thoroughbred racehorse; won 37 of his 51 career starts
Pleasant Colony: 1981 Kentucky Derby and Preakness Stakes winner
Popcorn Deelites: the main horse who played Seabiscuit in the Oscar Nominated film Seabiscuit
Potoooooooo: 18th-century thoroughbred racehorse who won over 30 races and defeated some of the greatest racehorses of the time.
Pretty Polly Irish Thoroughbred racehorse who won 15 consecutive races, fifth filly to win the British Fillies Triple Crown, record 24: 22-2-0
Priam: 1974 Indonesia Derby Winner
Prince Loupan: Indonesian racehorse who was nicknamed the Gold Ship of Indonesia. His name started to become famous after an incident at the IHR: Merdeka Cup 2025, when Prince Loupan was almost finished then he suddenly turned direction and made him fail to win the match as 1st place. During a visit to his Stable namely King Halim Stable, the stable's groom said that Prince Loupan often knocks over his jockey when he was being trained.
Princess Gavi: Indonesian racehorse who won the Pertiwi Cup in 2025
Putra Sulut: 1986 Indonesia Derby Winner
Putri Pajajaran: 1989 Indonesia Derby Winner

Q

Quevega: only horse in the history to win at six consecutive Cheltenham Festivals
Queensway: won the Canadian Triple Crown

R

Rachel Alexandra: filly and winner of the 2009 Preakness Stakes
Rakwool: Australian bay gelding, won the 1931 Grand National Steeplechase
Ratu Adria: 1992 Indonesia Derby Winner
Ratu Mayangkara: 1997 Indonesia Derby Winner, one of the Undefeated Racehorses, with 100% win rate.
Ratu Nagari: 2001 Indonesia Derby Winner
Rapid Dash: 2024 Indonesia Derby Winner
Roy Olcott: harness racehorse
Real Quiet: winner of the 1998 Kentucky Derby and Preakness Stakes; lost the third leg of the U.S. Triple Crown, the Belmont Stakes, by a margin of four inches
Red Rum: only horse in the history of the Aintree Grand National to win the race three times
Red Silenos: 2013 Indonesia Derby Winner
Regret: first filly to win the Kentucky Derby
Ribot: Thoroughbred undefeated in sixteen races
Rice Shower: Winner of the 1992 Kikka Sho and two-time Tenno Sho winner; euthanized after breaking his leg during the 1995 Takarazuka Kinen
Rich Strike: 2022 Kentucky Derby winner
Rio Bravo: 1983 Indonesia Derby Winner
Roberto: 1972 Epsom Derby winner and sire of Brian's Time and Dynaformer
Robin Hood: 1994 Indonesia Derby Winner
Rock Sand: English Triple Crown winner ; sire of the dam of Man o' War
Romantic Warrior: Winner of multiple Grade I races in Hong Kong, Australia, and Japan
Roofcryl: 1993 Indonesia Derby Winner
Round Table: sire of stakes winners; born in the same barn the same night as Bold Ruler, in 1954
Ruffian: Two time winner of the Eclipse Award who won ten consecutive races and was euthanized after breaking her leg in a race at Belmont Park
Ruthless: first ever winner of the Belmont Stakes, and the first of only three fillies ever to win the Belmont Stakes

S

Sadler's Wells: one of Europe's most successful sires of the late 20th century
Sakura Bakushin O: winner of 1993 and 1994 Sprinters Stakes
Sari Pohaci: 1987 Indonesia Derby Winner
Satono Diamond: Winner of the 2016 Kikka Sho and Arima Kinen
Satono Reve: 2025 Takamatsunomiya Kinen winner
Screen Hero: Winner of the 2008 Japan Cup
Sea Bird: second highest Timeform rated horse
Sea the Stars: first horse ever to win the 2,000 Guineas, Epsom Derby, and Arc de Triomphe in the same year
Seabiscuit: beat War Admiral in a nationally broadcast 1938 match race; like Phar Lap, raced during the Depression
Seattle Slew: U.S. Triple Crown winner
Secretariat: U.S. Triple Crown winner ; one of the most famous horses in Thoroughbred racing
Seize the Grey: 2024 Preakness Stakes winner
Sham: The main competitor to Secretariat during the 1973 racing season
Shergar: winner of the 1981 Epsom Derby by a record 10 lengths, the longest winning margin in a race run annually since 1781; kidnapped by the IRA in 1983, and was held for ransom, but the owner syndicate refused to pay, fearing that valuable horses would become targets; the stallion was never found
Shinzan: Japanese Triple Crown winner of 1964.
Silence Suzuka: Winner of the 1998 Takarazuka Kinen whose legs broke in the Tenno Sho that same year, leading to his untimely euthanization.
Silky Sullivan: An American racehorse best known for his come-from-behind racing style.
Sir Winston: Winner of 2019 Belmont Stakes
Skewball: immortalized in 18th century poetry as a sku-ball winning against a Thoroughbred
Smart Falcon: A Japanese racehorse known as the "Runner of the Dirt"
Smarty Jones: became the first unbeaten Kentucky Derby winner since Seattle Slew in 1977
Sodashi: First white horse to win a Grade 1 race, and also went on to win 2 other Grade 1 races in her race career
Sovereignty: 2025 Kentucky Derby and Belmont Stakes winner
Special Week: 1998 Tokyo Yūshun winner, as well as the Japan Cup and both Tennō Shōs
Spectacular Bid: Hall of Fame champion who went undefeated as a four-year-old, and won 26 of 30 career starts
St Lite: The first horse to win the Triple Crown in Japan
Stay Gold: Dubbed "the Silver Collector" during his racing career; goes on to sire Orfevre, Gold Ship, and Oju Chosan
Steel Dust: 19th-century quarter-mile racing horse.
Stellar Wind: Stellar Wind is an American Thoroughbred racehorse, known for her Eclipse Award winning three-year-old season, and later for her rivalry with the champion mare Beholder.
Still in Love: 2003 Japanese Fillies' Triple Crown winner
Storm Cat: one of the most successful U.S. sires of the late 20th century
St. Simon: Undefeated British racehorse and successful sire
Sunday Silence: winner in the US; champion sire in Japan
Sunline: first Southern Hemisphere horse to top $10million in stakes earnings; three-time Australian ; four-time New Zealand Horse of the Year ; 13-time Group 1 winner
Super Creek: Japanese racehorse known for winning the 1988 Kikuka-shō and the 1989 Autumn and 1990 Spring Tenno Sho
Swale: 1984 Kentucky Derby and Belmont Stakes winner, died eight days after the Belmont win
Symboli Kris S: Two time winner of the Arima Kinen, later sire of Epiphaneia
Symboli Rudolf: Winner of the 1984 Japanese Triple Crown, and the first horse to win the Triple Crown undefeated.

T

Taiki Shuttle: JRA Hall of Fame inductee, two-time Yasuda Kinen winner and the first Japanese-trained horse to win the Prix Jacques Le Marois.
Tamamo Cross: First horse to win both Tenno Sho's in the same year
Tanino Gimlet: 2002 winner of the Japanese Derby; sire of Vodka
Tanya: second filly ever to win the Belmont Stakes
Tapit: Three time Leading sire in North America
Tapwrit: won the 2017 Belmont Stakes, and set a new stakes record for the Tampa Bay Derby
Ta Wee: two-time American Champion Sprint Horse, and won her second Fall Highweight Handicap, at 10 stone and her second Interborough Handicap, at 10 stone 2 pounds
Teddy: French horse known as an influential sire
Ten Point: 1977 Arima Kinen winner who suffered a career ending injury that ultimately proved fatal despite efforts to save his life
Tebaran Mega: 2012 Indonesia Derby Winner
The Duke: first and second winner of the Grand National
The General: Owned by the 10th United States president, John Tyler
The Minstrel: winner of the Derby, Irish Derby and King George VI and Queen Elizabeth Stakes
Titleholder: Winner of 3 GI races in Japan, with his win at Takarazuka setting a course record in 2022.
Tiznow: two-time winner of the Breeders' Cup Classic
T M Opera O: Became the Japanese Horse of the Year for the 2000 season after he went undefeated in all 8 races that he participated in, becoming the highest earning racehorse at the time in the process.
Tokai Teio: Japanese Horse of the Year of 1991. After suffering multiple injuries including a broken leg, went on to win the 1993 Arima Kinen in the famous "Miracle Run".
Tokino Minoru: Undefeated Japanese racehorse who died from tetanus 17 days after winning the Japanese Derby in 1951
Tonalist: winner of 2014 Belmont Stakes, and two-time winner of the Jockey Club Gold Cup
Trisoela: 1979 Indonesia Derby Winner
Tuscalee: steeplechaser and all-time record holder for most wins in a season, and for most steeplechase wins overall
Twenty Grand: winner of the Kentucky Derby, Belmont, and Travers Stakes, also was champion 3-year-old and Horse of the Year of 1931
Two Lea: successful broodmare and filly winner of the Hollywood Gold Cup

U

Unbreakable: grandsire of great Native Dancer
Unbridled: winner of the Kentucky Derby and Breeders' Cup Classic and sire of the champion sire Unbridled's Song
Unbridled's Song: Breeders' Cup Juvenile winner, and sire of the great Arrogate
Ushba Tesoro: Winner of the 2023 Dubai World Cup and the highest-earning horse in Japan

V

Vain: champion front runner; great, great grandsire of Black Caviar
Valencia: 1975 Indonesia Derby Winner
Varenne: Italy's most famous harness horse
Vino Rosso: 2019 Breeders Cup winner
Vodka: First filly in 64 years to win the Tokyo Yushun in 2007
Vo Rouge: fast frontrunner and 3-time winner of the C F Orr Stakes, had the Vo Rogue Plate named in his honor
Voltaire: winner of the 1828 Doncaster Gold Cup
Voltigeur: Won the Derby and the St Leger in 1850 and beat The Flying Dutchman in the Doncaster Cup. In 1851 Voltigeur was beaten by The Flying Dutchman in what was probably the most celebrated match race in the history of British thoroughbred racing.

W

Wali Nagari: 2004 Indonesia Derby Winner
War Admiral: fourth U.S. Triple Crown winner
War of Will: Winner of 2019 Preakness Stakes
Whistlejacket: Marquess of Rockingham's racehorse; painted by G. Stubbs
Winning Colors: third filly to win the Kentucky Derby
Winx: winner of 33 consecutive starts, including the Cox Plate four times
Wise Dan: two-time American Horse of the Year ; won Breeders' Cup Mile twice
Wishing Well: Dam of Sunday Silence
Whirlaway: fifth American Triple Crown winner
Whisk Broom II: first of four horses ever to win the New York Handicap Triple

X

Xaar: winner of Prix de Cabourg, Prix de la Salamandre
Xtra Heat: champion 3-year-old filly of 2001, and the only filly to win the Endine stakes twice

Y

Yeats: only horse ever to win 4 Ascot Gold Cups, also won 3 other group 1 races
Your Host: winner of 1950 Santa Anita Derby, 1951 Santa Catalina Handicap, sire of the great Kelso

Z

Zabeel: New Zealand sire of Octagonal and Vengeance of Rain
Zaccio: three-time winner of the Outstanding Steeplechase horse award in the 80s
Zenno Rob Roy: The only horse since T. M. Opera O to have won the Autumn Tenno Sho, Japan Cup, and the Arima Kinen consecutively; also holds the speed record for the Arima Kinen at 2:29.5
Zenyatta: won 19 of 20 starts; first mare to win the Breeders' Cup Classic ; first to win two different Breeders' Cup races
Zev: winner of the Belmont Stakes and the Kentucky Derby, as well as winner of a match race against Epsom Derby winner Papyrus
Zippy Chippy: infamous for racing 100 times and losing every single time