Darlton D. Cooper (August 2, 1902 – February 13, 1944), nicknamed "Dolly", was an American Negro league pitcher between 1923 and 1940. A native of Arkadelphia, Arkansas, Cooper was the brother of fellow Negro leaguer Anthony Cooper. Older brother Darltie made his Negro leagues debut in 1923 with the Indianapolis ABCs, and ended his long career with the Newark Eagles in 1940. Cooper died in Schenectady, New York in 1944 at age 41.