1966 UC Davis Aggies football team

The 1966 UC Davis Aggies football team represented the University of California, Davis as a member of the Far Western Conference (FWC) during the 1966 NCAA College Division football season. Led by fourth-year head coach Herb Schmalenberger, the Aggies compiled an overall record of 5–5 with a mark of 3–3 in conference play, tying for third place in the FWC. The team was outscored by its opponents 218 to 200 for the season. The Aggies played home games at Toomey Field in Davis, California.

The UC Davis sports teams were commonly called the "Cal Aggies" from 1924 until the mid 1970s.