Suzy Frelinghuysen (1911–1988) was an American abstract painter and erstwhile soprano.
In 1935, she married the artist George L.K. Morris, who encouraged her painting, and in 1938 she was the first woman to have a painting placed in the permanent collection of the Museum of Living Art. She and Morris were founding members of the American Abstract Artists. She took part, in Paris, at the Salon des Réalités Nouvelles, and exhibited also in Rome and Amsterdam.