1986 Cal State Fullerton Titans softball team

The 1986 Cal State Fullerton Titans softball team represented California State University, Fullerton in the 1986 NCAA Division I softball season. The Titans were coached by Judi Garman, who led her seventh season. The Titans finished with a record of 57–9–1. They competed in the Pacific Coast Athletic Association, where they finished first with a 22–5–1 record.

The Titans were invited to the 1986 NCAA Division I softball tournament, where they swept the West Regional and then completed a run through the Women's College World Series to claim their first NCAA Women's College World Series Championship.