Robert Edwin Gross is a retired American basketball player formerly in the NBA. A 6'6" (1.98 m) 200 lb (91 kg) forward, he attended Seattle University and California State University, Long Beach, and was selected in the 1975 NBA draft by the Portland Trail Blazers. He was also selected in the 1975 ABA Draft by the San Diego Sails. Gross was the starting small forward for the Blazers during their only championship season (1976-77). He left the NBA in 1983.
Selected by the Portland Trail Blazers 25th overall in the 1975 NBA draft out of California State University-Long Beach. His jersey was retired by the Trail Blazers in 2008.