William Carter may refer to:

Artists and entertainers William Carter (actor) (1902–1952), Australian silent film actor and company director William Carter (composer) (1838–1917), English composer, conductor, and organist William Carter (photographer) (1934–2025), American photographer Bill Carter (born 1966), American film director Bill Carter (musician), American singer, songwriter and musician William Harper Carter (born 1939), American businessman and former child actor

Businessmen William Carter (ink maker) (died 1895), American founder of what became Carter's Ink Company William E. Carter (1875–1940), American businessman and RMS Titanic survivor William Leonard Carter (1877–1917), British businessman and army officer Billy Carter (1937–1988), American businessman and younger brother of American President Jimmy Carter

Politicians William Blount Carter (1792–1848), American politician from Tennessee William Carter (Tasmanian politician) (1796–1878), first mayor of Hobart William Grayson Carter (died 1849), American politician from Kentucky William Carter (Wisconsin politician) (1833–1905), American politician from Wisconsin Sir William Carter (mayor of Windsor) (1848–1932), mayor of Windsor, England, 1908–1928 William Carter (mayor of Philadelphia) (1651–1739), mayor of Philadelphia, 1710–1711 William Carter (Mansfield MP) (1862–1932), British Labour Party member of parliament (MP) for Mansfield, 1918–1922 William Henry Carter (1864–1955), United States representative from Massachusetts William Carter (St Pancras South West MP) (1867–1940), British Labour Party MP for St Pancras South West, 1929–1931 William Arnold Carter (1907–1996), American governor of the Panama Canal Zone, 1960–1962 William Fields Carter (1908–1999), American politician from Virginia William Lacy Carter (1925–2017), American politician and businessman William Carter (Queensland politician) (1899–1969), publican and member of the Queensland Legislative Assembly Hodding Carter III (William Hodding Carter III, 1935–2023), American journalist and politician, son of Hodding Carter II W. Beverly Carter Jr. (1921–1982), American ambassador William W. Carter, member of the Kansas House of Representatives

Religious figures William Carter (bishop) (1850–1941), Anglican bishop in Africa William Carter (martyr) (c. 1548–1584), English printer and martyr

Sportsmen William Carter (Kent cricketer) (1822–1847), English cricketer William Carter (Surrey cricketer) (1841–1888), English cricketer William Carter (catcher) (1889–?), American baseball player William Carter (third baseman), American baseball player Bill Carter (baseball), Negro league baseball player Billy Carter (ice hockey) (1937–2024), retired Canadian ice hockey forward

Others William B. Carter (1820–1902), American farmer, Presbyterian minister, and mastermind of the East Tennessee bridge burnings of the American Civil War William Harding Carter (1851–1925), United States Army major general and Medal of Honor recipient Hodding Carter (William Hodding Carter II, 1907–1972), American journalist Will Carter (1912–2001), owner of the Rampant Lions Press and font designer William C. Carter, scholar of Marcel Proust