William Hancock
William Hancock may refer to:
- William Augustus Hancock, American pioneer, surveyor, engineer, politician, and jurist
- William Hancock (priest), Anglican priest in Australia
- William Hancock (ophthalmologist), English ophthalmologist and sportsman
- William Hancock Sr. (judge), commissioned Hancock House in Lower Alloways Creek Township, New Jersey
- William Hancock Jr. (judge), mortally wounded at the Hancock's Bridge massacre
- Billy Hancock, American singer, guitarist, and recording artist
- Keith Hancock (historian), Australian historian
- William Hancock of Pendle Hall, Lower Higham, Padiham, Lancaster, father-in-law of Thomas Anderton
- William Hancock (botanist), commemorated by Cyathea hancockii
- William Hancock (brewer) of Hancocks Brewery in the South West of England, father of Frank, Froude and William Hancock
- William Hancock (rugby), England national rugby union player, Newport RFC, and Salford, first capped 1955
- William J. Hancock, headmaster of Bastrop Academy, who commissioned Fowler House in 1852
- William John Hancock, telephone and X-ray pioneer in Western Australia
- Bill Hancock, a Canadian Alliance candidate in the 2000 Canadian federal election
- Bill Hancock (sports executive), American collegiate sports executive