William Barker
William Barker may refer to:
Politicians
- William Barker (translator) (fl. 1570), English translator and MP for Great Yarmouth and Bramber
- Sir William Barker, 5th Baronet (1685–1731), British Member of Parliament for Ipswich, Thetford and Suffolk
- William Barker (MP for Berkshire) (died 1685), English Member of Parliament for Berkshire
- William J. Barker (Denver mayor)
Judges
- William M. Barker (born 1941), Chief Justice of the Tennessee Supreme Court from 1995–2009
- William Julius Barker (1886–1968), American lawyer and judge
Sportspeople
- William Barker (cricketer), English cricketer
- Will Barker (American football) (born 1987), offensive tackle with the Tampa Bay Buccaneers
- Bill Barker (footballer) (1924–2002), footballer who played for Stoke City
- William Charles Barker (?–1937), footballer for Middlesbrough F.C. in the early 20th century, see List of Middlesbrough F.C. players
Others
- William Burckhardt Barker (1810–1856), orientalist
- William Higgs Barker (1744–1815), Hebraist
- William George Barker (1894–1930), Canadian Victoria Cross winner and World War I flying ace
- Will Barker (1867–1951), aka William George Barker, English film producer and director
- William Barker (prospector) (1817–1894), Canadian miner and prospector
- William Barker (priest) (1838–1917), Dean of Carlisle
- Bill Barker (born 1957), creator of Schwa, underground conceptual artwork
- Bill Barker, police officer who died in the November 2009 Great Britain and Ireland floods, namesake for the Barker Crossing
- Bill Barker, actor who portrayed Dr. Duckbill Platypus and Elsie Jean Platypus on Mister Rogers' Neighborhood