1990 NAIA women's basketball tournament

The 1990 NAIA women's basketball tournament was the tenth annual tournament held by the NAIA to determine the national champion of women's college basketball among its members in the United States and Canada.

Southwestern Oklahoma State defeated Arkansas–Monticello in the championship game, 82–75, to claim the Bulldogs' fifth NAIA national title and first since 1987.

The tournament was played at the Oman Arena in Jackson, Tennessee.

Qualification
The tournament field remained fixed at sixteen teams, with seeds assigned to the top eight teams.

The tournament utilized a simple single-elimination format.