Don "Tuffy" Mullison (July 4, 1924 - September 13, 2014) is a former head coach of the Colorado State college football program from 1956 to 1961. Mullison played football for the Colorado A&M Aggies in 1942 before serving in the Pacific during World War II. He returned to Colorado A&M in 1946 playing until 1948 and was a member of Bob Davis' Raisin Bowl team. A champion wrestler also, Mullison returned to Colorado A&M as the assistant line coach in football in 1952.