Eleanor Clark (July 6, 1913 – February 16, 1996) was an American writer. She was born in Los Angeles. She attended Vassar College in the 1930s and was involved with the literary magazine Con Spirito there, along with Elizabeth Bishop, Mary McCarthy, and her sister Eunice Clark. She married Robert Penn Warren in 1952 and lived in Fairfield, Connecticut, with him and their two children, Rosanna and Gabriel.
For her book The Oysters of Locmariaquer (1964), Clark received the U.S. National Book Award in category Arts and Letters. Warren had won the Poetry award in 1958.
Clark was also the author of two other works of nonfiction, Rome and a Villa and Eyes, Etc., and the novels The Bitter Box, Baldur's Gate, and Camping Out.
Clark died in Boston in 1996.