1998 NCAA Division II men's basketball tournament

The 1998 NCAA Division II men's basketball tournament was the 42nd annual single-elimination tournament to determine the national champion of men's NCAA Division II college basketball in the United States.

The official culmination of the 1997–98 NCAA Division II men's basketball season, the tournament featured forty-eight teams from around the country.

The Elite Eight, national semifinals, and championship were played at the Commonwealth Convention Center in Louisville, Kentucky.

UC Davis (31–2) defeated Kentucky Wesleyan in the final, 83–77, to win their first Division II national championship.

The Aggies were coached by Bob Williams. Kentucky Wesleyan's Antonio Garcia, meanwhile, was the Most Outstanding Player.

South Atlantic - Spartanburg, South Carolina
Location: Hodge Center Host: University of South Carolina-Spartanburg

North Central - Brookings, South Dakota
Location: Frost Arena Host: South Dakota State University

South - Cleveland, Mississippi
Location: Walter Sillers Coliseum Host: Delta State University

Great Lakes - Owensboro, Kentucky
Location: Sportscenter Host: Kentucky Wesleyan College

Northeast - Albany, New York
Location: Events and Athletics Center Host: College of Saint Rose

East - Salem, West Virginia
Location: T. Edward Davis Gymnasium Host: Salem-Teikyo University

South Central - Canyon, Texas
Location: West Texas Fieldhouse Host: West Texas A&M University

West - Davis, California
Location: The Pavilion Host: University of California, Davis

Elite Eight - Louisville, Kentucky
Location: Commonwealth Convention Center Host: Bellarmine College

All-tournament team

 * Antonio Garcia, Kentucky Wesleyan (MOP)
 * Dana Williams, Kentucky Wesleyan
 * Jason Cox, UC Davis
 * Dante Ross, UC Davis
 * William Davis, Virginia Union