1981 Southwestern Louisiana Ragin' Cajuns football team

The 1981 Southwestern Louisiana Ragin' Cajuns football team was an American football team that represented the University of Southwestern Louisiana (now known as the University of Louisiana at Lafayette) in the Southland Conference during the 1981 NCAA Division I-A football season. In their second year under head coach Sam Robertson, the team compiled a 1–9–1 record.