The 1981 UC Davis Aggies football team represented the University of California, Davis as a member of the Far Western Conference (FWC) during the 1981 NCAA Division II football season.
Led by 12th-year head coach Jim Sochor, UC Davis compiled an overall record of 6–4 with a mark of 4–1 in conference play, sharing the FWC title with Cal State Hayward.
The Aggies were conference champions for the 11th consecutive season and had a winning record for the 12th straight year.
UC Davis' loss to Humboldt State on October 10 broke a streak of 38 consecutive conference victories that started in the 1973 season.
The Aggies played home games at Toomey Field in Davis, California.