Mary Tuthill Lindheim (February 14, 1912 – December 30, 2004), born Mary Barbara Tuthill, and also known professionally as Mary Tuthill or Mary Lindheim, was an American sculptor and studio potter.
She trained as a sculptor with Ralph Stackpole and Alexander Archipenko, working in Los Angeles, Chicago, New York, and San Francisco between 1930 and 1945.
Widowed in World War II, she turned to ceramics, studying with Antonio Prieto at California College of Arts and Crafts (now California College of the Arts), and was an active studio artist and leader in potters' and craftsmen circles in the Bay Area from 1946 to 1969.
In 1969, she moved to Bolinas, California, and in 1994, she was given a retrospective at the small but respected Bolinas Museum, which revived her reputation.