William Ellis (disambiguation)
William Ellis is the name of the following people:
- William Ellis (1794–1872), English missionary, author and explorer
- William Ellis (actor) (born 1943), British actor
- William Cox Ellis (1787–1871), American politician
- William R. Ellis (1850-1915), American politician
- William Thomas Ellis (1845–1925), American politician
- William Wade Ellis (1751–1785), British naturalist
- William Webb Ellis (1806–1872), British rugby lobbyist
