Agnes Earl Lyall (February 25, 1908 - September 14, 2013^[1]) was an American artist.^[2] She helped found the American Abstract Artists in 1936.^[3] Her work is included in the collections of the Whitney Museum of American Art,^[2] the Metropolitan Museum of Art,^[4] the Smithsonian American Art Museum,^[5] the Brooklyn Museum,^[6] the Yale University Art Gallery,^[7] the Carnegie Museum of Art,^[8] the National Gallery of Art^[9] and the Museum of Modern Art, New York.^[10]

Lyall graduated with a BA in Art from Smith College^[11] in 1930, and MA in Art from Columbia University. She spent some time in Europe traveling and studying art and returned to New York City.