A British landscape painter, known best for his abstract depictions of Yorkshire moors.

Born in Ilkley, West Yorkshire he attended grammar school in his hometown. He then went to Leeds College of Art from 1948 to 1952. Hyatt spent his national service with the Royal Air Force and attended Norwich University of the Arts part-time. The Royal College of Art offered him a scholarship in 1957, and Hyatt became the editor of the college's journal Ark.

He began teaching as a visiting lecturer at the Kingston College of Art in 1954. Hyatt moved back to his native Yorkshire in 1964, to teach at Leeds Beckett University. Later, he moved to Collingham and also owned a farmhouse in Bishopdale.