Jack Butler Yeats (29 August 1871, London – 28 March 1957, Dublin) was an Irish artist. His early style was that of an illustrator; he only began to work regularly in oils in 1906. His early pictures are simple lyrical depictions of landscapes and figures, predominantly from the west of Ireland—especially of his boyhood home of Sligo. He was the youngest son of Irish portraitist John Butler Yeats, and the brother of the Nobel Prize winning poet William Butler Yeats.

Yeats' works contain elements of Romanticism, and is grounded in fine observation and brilliant draughtsmanship.