William Carpenter
William Carpenter may refer to:
- William Carpenter (painter) (1818–1899), water colours of India
- William Carpenter (Australian politician) (1863–1930), Australian politician
- William Carpenter (writer) (born 1940), American author
- William Carpenter (flat Earth theorist) (1830–1896), advocate of the Flat Earth theory
- William Carpenter (Rhode Island) (c. 1610–1685), co-founder of Rhode Island and Providence Plantations
- William Carpenter (1797–1874), theological and political writer, journalist, and editor
- William Benjamin Carpenter (1813–1885), English physiologist and naturalist
- William Boyd Carpenter (1841–1918), Church of England clergyman and bishop of Ripon
- William Hookham Carpenter (1792–1866), Keeper at British Museum
- William Henry Carpenter (philologist) (1853–1936), American philologist
- William H. Carpenter (1821–1885), U.S. Consul to Foochow, China, during the American Civil War years
- William Kyle Carpenter, (born 1989), Medal of Honor recipient
- William L. Carpenter (1844–1898),U.S. Army officer, naturalist and geologist
- William L. Carpenter (Michigan jurist) (1854–1936), member of the Michigan Supreme Court
- William Marbury Carpenter (1811–1848), American physician and naturalist
- William Randolph Carpenter (1894–1956), US Congressman
- William T. Carpenter, psychiatrist
- William Thomas Carpenter (1854–1933), cowman and author
- Bill Carpenter (William S. Carpenter, Jr., born 1937), American football player and Army officer
- William Carpenter of Rehoboth (born 1605), co-founder of Rehoboth, Massachusetts, see Rehoboth Carpenter family
- William J. Carpenter (1827–1921), Old West outdoorsman
- William the Carpenter, French nobleman