John Alexander McDougall (1810–1894) was an American painter and photographer, known for his portrait miniatures. Born in Livingston, New Jersey, he studied at the National Academy of Design in New York City, and lived for much of his life in Newark, New Jersey. McDougall was good friends with painters George Inness and Asher B. Durand, as well as writers Washington Irving and Edgar Allan Poe, whom he painted. His miniatures, some of which were unusually small, are found in the permanent collections of the Metropolitan Museum of Art and the Smithsonian American Art Museum. He had a daughter and four sons, including the cartoonist Walt McDougall.