The 1931 Pacific Tigers football team represented the College of the Pacific—now known as the University of the Pacific—in Stockton, California as a member of the Far Western Conference (FWC) during the 1931 college football season.
The team was led by 11th-year head coach Erwin Righter, and played home games at Baxter Stadium in Stockton.
Pacific compiled an overall record of 5–2–2 with a mark of 2–1–2 in conference play, placing in a four-way tie for first in the FWC.
No champion was named for the 1931 season.
The Tigers outscored their opponents 110 to 52 for the season.