John Davidson Butler (1890–1976), was an American artist from Seattle, Washington. He worked primarily as a painter, but later also as a printmaker and ceramicist.
Butler was one of three Seattle artists who worked together under the name "The Triad". The others were etcher Roi Partridge and miniaturist Clare Shepard Shisler. Also in their circle were photographer Imogen Cunningham (who used Butler and the others extensively as models, and later married Partridge), and painters Mabel Lisle Ducasse and Yasushi Tanaka.
As a youth, Butler studied in Seattle under Carlotta Blaurock, who had been, in turn, a student of James McNeill Whistler. He also studied with Ella Shepard Bush (founder in 1894 of the Seattle Art School) and other local artists. Some of his early work was exhibited at Seattle's 1909 Alaska–Yukon–Pacific Exposition. In 1910, he followed Partridge to New York, where two of Butler's watercolors were shown at the American Watercolor Society exhibition a