The 2018 Colorado State Rams football team represented Colorado State University during the 2018 NCAA Division I FBS football season. The Rams were led by fourth-year head coach Mike Bobo and played their home games at Sonny Lubick Field at Canvas Stadium in Fort Collins, Colorado as members of the Mountain Division of the Mountain West Conference. They finished the season 3–9, 2–6 in Mountain West play to finish in fifth place in the Mountain Division.