Mildred Natwick (June 19, 1905 – October 25, 1994) was an American stage, film and television actress. In 1967, she earned an Academy Award nomination for her supporting role in Barefoot in the Park. She was nominated for two Tony Awards in 1957 and 1972 and won a Primetime Emmy Award for her work in the miniseries The Snoop Sisters, opposite Helen Hayes.

Natwick began performing on the stage at age 21 with "The Vagabonds", a non-professional theatre group in Baltimore. She soon joined the University Players on Cape Cod. Natwick made her Broadway debut in 1932 playing Mrs. Noble in Frank McGrath’s play Carry Nation, about the famous temperance crusader Carrie Nation. Throughout the 1930s she starred in a number of plays, frequently collaborating with friend and actor-director-playwright Joshua Logan. On Broadway, she played "Prossy" in Katharine Cornell's production of Candida. She made her film debut in John Ford's The Long Voyage Home as a Cockney slattern, and portrayed the landlady in The Enchanted Cottage (1945).