Mary Margaret "Peggy" Wood (February 9, 1892 – March 18, 1978) was an American actress of stage, film and television. She is best remembered for her final screen appearance as Mother Abbess in The Sound of Music (1965), for which she was nominated for an Academy Award and a Golden Globe Award.
She is also known as Mary Margaret Wood.
Wood died on March 18, 1978 in Stamford, Connecticut, following a stroke. She was 86 years old.