Clifford Eugene Koroll (born October 1, 1946) is a Canadian former professional ice hockey right winger. After earning all-WCHA honours at the University of Denver in 1968, Koroll signed an NHL contract and played his entire National Hockey League career spanning from 1969 to 1980 with the Chicago Blackhawks. He then became as assistant coach for the Blackhawks for six seasons (1980–1984 and 1985–1987). In the 1984–85 season he served as head coach for the Milwaukee Admirals of the International Hockey League.