Donald Clayborn Sleet (November 27, 1938 – December 31, 1986) was an American jazz trumpeter. He was a member of Howard Rumsey's Lighthouse All-Stars and Lenny McBrowne and the Four Souls. Widely considered a gifted musician, compared to the likes of Art Farmer and Kenny Dorham, Sleet had a short career as a result of his drug abuse, recording only one album as a leader.