William Cotton
William Cotton may refer to:
- William Cotton (artist), American artist and playwright
- William Cotton (MP for Cambridgeshire), see Cambridgeshire (UK [Parliament constituency)]
- William Cotton (MP for Newport, Isle of Wight), see Newport (Isle of Wight) (UK Parliament constituency)
- William Cotton (Archdeacon of Totnes), Anglican priest
- William Cotton (bishop), Bishop of Exeter, 1598–1621
- William Cotton (inventor), inventor of a knitting machine
- William Cotton (ironmaster) died 1675, husband of Anna Cotton
- William Cotton (banker), Governor of the Bank of England, 1842–1845
- William Cotton (missionary), Anglican priest and beekeeper
- William F. Cotton, central Louisiana businessman
- William Francis Cotton, Irish politician
- William R. Cotton, American meteorologist
- Sir William Cotton (Lord Mayor), British politician, Lord Mayor of London, Member of Parliament for City of London 1874–1885
- Will Cotton, American painter
- Bill Cotton, British television producer
- Billy Cotton, bandleader, father of the above
- Billy Cotton (footballer, born 1894), English soccer player