Mary Stafford may refer to:
Mary Stafford (singer) (c. 1895–c. 1938), American cabaret singer Mary Stafford Anthony (1827–1907), American suffragist Mary Boleyn Stafford (c. 1499–1543), sister of Queen Anne Boleyn and a mistress of Henry VIII Mary Howard, Countess of Stafford (1619–1693), née Stafford, English suo jure peeress