William Vernon (1719–1806) was a New England trader.
William Vernon may also refer to: William H. Vernon (1944–2014), American businessman and politician William Silas Vernon (1871-1929), American politician William Tecumseh Vernon (1871–1944), American educator, minister and bishop in the African Methodist Episcopal Church William de Vernon, founder of the Vernon family William Vernon (died 1467), Knight-Constable of England William Warren Vernon (1834–1919), British noble and scholar
See also Bill Vernon (1937–1996), American radio DJ Will Vernon, a character on the TV soap opera One Life to Live