Douglas R. Belden (April 24, 1927 – July 8, 1972) was an American player of Canadian football who was a quarterback for the Regina and Saskatchewan Roughriders of the Canadian Football League (CFL). He attended the University of Florida in Gainesville, Florida, where he played for the Florida Gators football team from 1945 to 1948. He also played baseball and basketball for the Gators. He was later inducted into the University of Florida Athletic Hall of Fame as a "Gator Great."
Belden was drafted by the Chicago Cardinals in the 27th round of the 1948 NFL Draft. He signed with the Regina Roughriders in 1949, and played for them from 1949 to 1952.