George Thomas Baker (born April 25, 1970) is an American art historian of modern and contemporary art. He is especially known for his writings on photography. He is a professor of art history at the University of California, Los Angeles and an editor of the journal October. Reviewing a book that Baker wrote on Dada, Merlin James wrote "What Baker really offers, perfectly reasonably, is high-end, post-modern theorising, with just a touch of unconventionality in honour of his subject’s way-outness."