William Crozier

• William Crozier (artillerist), American general, artillerist and inventor
• William Crozier (Scottish artist)
• William Crozier (Irish artist)
• William Crozier (cricketer), Irish cricketer
• William Percival Crozier, British journalist and editor
• William Crozier, son and heir of John Crozier, South Australian pastoralist
• William John Crozier, American physiologist