1989 Sonoma State Cossacks football team
The 1989 Sonoma State Cossacks football team represented Sonoma State during the 1989 NCAA Division II football season. Sonoma State competed in the Northern California Athletic Conference in 1989. The 1989 Cossacks were led by first-year head coach Tim Walsh. They played home games at Cossacks Stadium in Rohnert Park, California. Sonoma State finished the season with a record of four wins and six losses (4–6, 2–3 NCAC). The Cossacks were outscored by their opponents 196–205 for the season.