William Carter
William Carter may refer to:
- William Carter (martyr) (1548–1584), English printer and martyr
- William Blount Carter (1792–1848), American politician from Tennessee
- William Grayson Carter (died 1849), American politician from Kentucky
- William Carter (composer) (born 1838), American composer of The Skidmore Guard
- William Carter (bishop) (1850–1941), Anglican bishop in Africa
- William Carter, American founder of Carter's, Inc., manufacturer of children's apparel, in 1865
- William Carter (ink maker) (died 1895), American founder of what became Carter's Ink Company
- Sir William Carter (mayor) (1848–1932), mayor of Windsor, England, 1908–1928
- William Harding Carter (1851–1925), United States Army major general and Medal of Honor recipient
- William Carter (Mansfield politician) (1862–1932), British Labour Party Member of Parliament for Mansfield, 1918–1922
- William Henry Carter (1864–1955), United States Representative from Massachusetts
- William Carter (London politician) (1867–1940), British Labour Party Member of Parliament for St Pancras South West, 1929–1931
- William Hodding Carter, I (1881–1955), American businessman, Democratic politician, and farmer from Louisiana
- William Arnold Carter (1907–1996), American Governor of the Panama Canal Zone, 1960–1962
- William Carter (photographer) (born 1934), American photographer
- Billy Carter (1937–1988), younger brother of American President Jimmy Carter
- Billy Carter (ice hockey) (born 1937), retired Canadian professional ice hockey forward
- Bill Carter (born 1966), American film director