The 1989 NCAA Division I Softball Tournament was the eighth annual tournament to determine the national champion of NCAA women's collegiate softball. Held during May 1989, twenty Division I college softball teams contested the championship. The tournament featured eight regionals of either two or three teams, each in a double elimination format. The 1989 Women's College World Series was held in Sunnyvale, California from May 24 through May 28 and marked the conclusion of the 1989 NCAA Division I softball season. For the second consecutive year, UCLA won the championship by defeating Fresno State 1–0 in the final game.