William Campion (disambiguation)

William Campion was a British politician, Governor of Western Australia.

William Campion may also refer to:

• William Campion (died 1615), MP for Haslemere (UK Parliament constituency)
• William Magan Campion (mathematician) and President of Queens' College, Cambridge
• William Campion (Jesuit)
• William Campion (organist)
• William Campion (1640-1702), MP for Kent
• Bill Campion (born 1952), American professional basketball player