George Washington Henry Jack (8 August 1855 - 15 December 1931) was a British Arts and Crafts designer and architect. Born in America, he grew up and trained in Scotland, before moving south to join the office of Philip Webb. A contemporary of William Morris, Jack designed furniture for Morris & Co., and was a member of the Art Workers Guild and the Arts and Crafts Society. After the turn of the 20th century, he set up his own practice, which continued until his death.