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 0âÂÂ12 record (0âÂÂ8 against WAC opponents), becoming the first team to ever go 0âÂÂ12 in a season; only the 2003 Army team has eclipsed them, as they went 0âÂÂ13.
Head coach Sark Arslanian was fired after the Rams opened the season with a 0âÂÂ6 record, ending his nine-year tenure with a 46âÂÂ46âÂÂ4 record. Defensive coordinator Chester Caddas was named as the team's interim head coach and led the team to an 0âÂÂ6 record, finishing the season winless. Caddas was replaced by Texas defensive coordinator Leon Fuller after the 1981 season.