William Capell
# William Capell

William Capell may refer to:

* William Capel (died 1515), Lord Mayor of London
* William Capell, 3rd Earl of Essex (1697–1743), 3rd Earl of Essex
* William Capell, 4th Earl of Essex (1732–1799), 4th Earl of Essex
* William Capel (sportsman) (1775–1854), sportsman and priest
* William Jennings Capell (born 1953), American heir presumptive to the earldom of Essex
