The 1981 Colorado State Rams football team was an American football team that represented Colorado State University in the Western Athletic Conference (WAC) during the 1981 NCAA Division I-A football season.
The team compiled a 0–12 record (0–8 against WAC opponents).
[1] Head coach Sark Arslanian was fired after the Rams opened the season with a 0–6 record, ending his nine-year tenure with a 46–46–4 record.
[2] Defensive coordinator Chester Caddas was named as the team's interim head coach and led the team to an 0–6 record, finishing the season winless.
[2] Caddas was replaced by Texas defensive coordinator Leon Fuller after the 1981 season.