| Teams | 20 |
|---|---|
| Finals site | |
| Champions | UCLA (6th (7th overall) title) |
| Runner-up | Fresno State (6th WCWS Appearance) |
| Winning coach | Sharron Backus & Sue Enquist (6th (7th overall) & 2nd title) |
| Attendance | 19349 |
The 1990 NCAA Division I softball tournament was the ninth annual tournament to determine the national champion of NCAA women's collegiate softball. Held during May 1990, 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 1990 Women's College World Series was held in Oklahoma City, Oklahoma from May 23 through May 28 and marked the conclusion of the 1990 NCAA Division I softball season. For the third consecutive year, UCLA won the championship by defeating Fresno State 2–0 in the final game.[1][2]