William Lewis
William or Willie Lewis may refer to:
Politicians
- William Lewis (MP for Anglesey), MP for Anglesey in 1553 and 1555
- William Lewis (MP for Helston), MP for Helston in 1584
- William Lewis (MP for King's Lynn), MP for King's Lynn in 1593
- William Lewis (MP for Cardiff), MP for Cardiff in 1601
- Sir William Lewis, 1st Baronet, MP for Petersfield, Breconshire and Lymington
- William Lewis (MP for Devizes), MP for Devizes, 1660–1661
- William J. Lewis, U.S. representative from Virginia
- William Lewis (Australian politician), businessman and politician of Kapunda, South Australia
- William Lewis (New York politician), New York politician
- William James Lewis, physician and politician in New Brunswick, Canada
- William Lewis (Kentucky politician), U.S. representative from Kentucky
- William Lewis, 3rd Baron Merthyr, deputy speaker of the House of Lords
- William E. Lewis, Missouri politician
- Frederick William Lewis, Canadian politician from Ontario
Sportspeople
- William Lewis (chess player), English chess competitor and author
- William Lewis (cricketer), English cricketer
- William Lewis (football), association football referee, and secretary of Chelsea F.C.
- William H. Lewis, first African-American All-American football player and United States Assistant Attorney General
- William Lewis (athlete), American hurdler in the 1900 Olympic Games
- Willie Lewis (boxer), American boxer
- William Ian Lewis (cricketer), Irish cricketer
- Will Lewis (American football), American football executive and former cornerback
- Will Lewis (rugby union), Welsh international rugby union player
- William Lewis (figure skater), former Canadian figure skater
Arts
- William Thomas Lewis, English actor
- Willard Louis, American actor who was sometimes credited as William Lewis
- Willie Lewis, jazz clarinettist
- William Lewis (tenor), American operatic tenor
- Willie Lewis (rockabilly musician), musician and founder of Rock-A-Billy Records
- Spliff Star, American rapper
Scientists
- William Lewis (chemist, died 1781), English chemist and physician
- William Lewis (mineralogist), professor of mineralogy at Cambridge University
- William Lewis (chemist, born 1869), professor of chemistry at Exeter University
- William Lewis (physical chemist), propounded collision theory
- William M. Lewis Sr., fish biologist
Businessmen
- William Lewis, 1st Baron Merthyr, Welsh coal mining magnate
- William Turnor Lewis, Wisconsin businessman and state legislator
- William D. Lewis, banker, merchant, and railroad executive
- William Lewis (journalist), publisher and CEO of The ''Washington Post''
Other
- William Lewis (pirate), English pirate
- William Lewis (judge), United States federal judge
- William Terrell Lewis, Nashville businessman
- William Berkeley Lewis, confidant of Andrew Jackson and auditor of the U.S. Treasury
- William B. Lewis (New York treasurer), New York State treasurer, 1862–1863
- William Garrett Lewis, British Baptist preacher
- William G. Lewis, Confederate general in the American Civil War
- William Draper Lewis, dean of the University of Pennsylvania Law School; founding director of the American Law Institute
- William Mather Lewis, president of George Washington and Lafayette Universities and government official
- William F. Lewis, Episcopal bishop
- Sir W. Arthur Lewis, Saint Lucian economist
Companies
- William Lewis & Son Co., a Chicago-based orchestral string instrument company acquired in 1995 by Selmer