Jeffrey Steele (1931–2021) was an abstract painter and founder of the Systems Group.

The Systems Group was a group of British artists working in the constructivist tradition. The group was formed after an inaugural Helsinki exhibition in 1969 entitled Systeemi•System. The exhibition coordinator Jeffrey Steele together with Malcolm Hughes, invited the participating artists to form a group in 1970. The Systems Group had no manifesto and no formal membership; it existed for the purpose of discussion and exhibition rather than direct collaboration.