Glen Grunwald (born June 13, 1958) is an attorney and basketball executive who currently serves as director of athletics for McMaster University in Hamilton, Ontario. He previously served as general manager of the Toronto Raptors and New York Knicks of the NBA.
Born in Chicago, Illinois, Grunwald was a high-school All-American basketball player from East Leyden High School in Franklin Park, Illinois. He is the only player selected All-Chicago area four times, and was player of the year in the state his senior year, 1976. He was injured prior to his freshman year at Indiana University, and although he was a team captain in 1981 when Indiana won the national title, and was drafted by the Boston Celtics in the 5th round of the NBA Draft, he never played professional basketball.
Grunwald returned to college, earning a J.D. at Northwestern University School of Law, and an MBA from Indiana University.
Grunwald was a corporate attorney before returning to basketball as vice president and general counsel of the Denver Nuggets in 1990.
From 1994 to 1997 Grunwald was vice president for legal affairs and assistant general manager of the expansion Toronto Raptors, working with college teammate and general manager Isiah Thomas. He became general manager in 1997 after Thomas' majority ownership bid had failed and he ended his connection to the team. He oversaw some of the Raptors' greatest years of success, including orchestrating a trade for Vince Carter and team's first trip to the NBA conference semi-finals. The Raptors managed three straight playoff berths from 2000–2002.