Onya La Tour (1896–1976) was an American art collector and dealer, artists' model, manager of art galleries in Puerto Rico, New York City, and Indiana, and an advocate for modernism and the appreciation of modern art. In the 1930s to 1960s, La Tour acquired hundreds of paintings and graphic art works by modernist artists, many of whom later became notable. During the Great Depression, she was Director of the Federal Art Gallery in New York City, which supported artists under the auspices of the Work Projects Administration. She also operated her own private Onya LaTour Gallery in New York. In 1939, she brought her collection of more than 400 works of art from New York City to the artists colony in rural Brown County, Indiana, where she founded a short-lived Indiana Museum of Modern Art (se