Marguerite Munger Peet (1903–1995) was an American painter. She did not have a far-reaching artistic reputation during her lifetime as she did not often exhibit her work in public. Her family found over 430 of her paintings after her death, and she has been the subject of three major retrospectives in the last 15 years. Her most significant work was created under the tutelage of famed American Regionalist painter Thomas Hart Benton.