William Bassett
William Bassett may refer to:
- William Bassett (by 1531–52 or later), MP for Maldon
- William Bassett (died 1553), MP for Derbyshire
- William Bassett (died 1586), MP for Glamorgan
- William Bassett (died 1601), MP for Staffordshire
- William Bassett (Royalist), MP for Bath
- William Bassett (d. 1667), early New England colonist
- William Bassett (died 1693), MP for Bath
- William Bassett Jr., whose daughter Elizabeth Proctor was accused of witchcraft in the 1692 Salem witch trials
- William H. Bassett, American actor
- William Bassett (USAF officer), a USAF officer who, contrary to a received order, decided not to launch missiles armed with nuclear warheads while stationed at Okinawa during the 1962 Cuban Missile Crisis