William Vernon (disambiguation)

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 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