Alexander Robertson James (1890–1946) was an American painter known for portraits, landscapes, and genre scenes. Born in Cambridge, Massachusetts, he was the youngest son of philosopher William James and nephew of novelist Henry James. He studied at the Boston Museum School under Frank W. Benson and later worked under the guidance of Abbott Thayer, settling in Dublin, New Hampshire in 1918. James became particularly noted as a portrait painter, depicting prominent figures including George de Forest Brush, John D. Rockefeller, and Paul Revere, while also producing Impressionist-inspired landscapes and scenes of rural New Hampshire. He exhibited regularly at the Art Institute of Chicago, Pennsylvania Academy of the Fine Arts, and Corcoran Gallery of Art, and his work is represented in collections including the Museum of Fine Arts, Boston, the Addison Gallery of American Art, and the Nelson-Atkins Museum of Art.