William Cartwright
William Cartwright may refer to:
- William Cartwright (dramatist), English dramatist and churchman
- William Cartwright (1634–1676), English politician who sat in the House of Commons in 1659
- William Cartwright (actor), English actor
- William Cartwright (c.1704–1768), English Member of Parliament for Northamptonshire
- William Cartwright (British Army officer, died 1827), British general
- William Cartwright (British Army officer, died 1873), British general
- William Cartwright (film editor), American television and film director, producer and editor
- William Cartwright (Bahamian politician), Bahamian politician and co-founder of the Progressive Liberal Party
- William Cornwallis Cartwright, British Member of Parliament for Oxfordshire, 1868–1885
- William Ralph Cartwright, English landowner and Tory politician who sat in the House of Commons between 1797 and 1846