1990 NCAA Division II men's basketball tournament

The 1990 NCAA Division II men's basketball tournament involved 32 schools playing in a single-elimination tournament to determine the national champion of men's NCAA Division II college basketball as a culmination of the 1989-90 NCAA Division II men's basketball season. It was won by Kentucky Wesleyan College, with Wade Green of runner-up California State University, Bakersfield named the Most Outstanding Player.

Regional participants
* denotes tie

New England - Manchester, New Hampshire
Location: NHC Fieldhouse Host: New Hampshire College


 * Third Place - New Hampshire College 91, New Haven 88

West - Bakersfield, California
Location: CSUB Student Activities Center Host: California State University, Bakersfield


 * Third Place - Humboldt State 71, UC Riverside 70

East - Erie, Pennsylvania
Location: Hammermill Center Host: Gannon University


 * Third Place - C.W. Post 84, Slippery Rock 79

South Atlantic - Norfolk, Virginia
Location: Joseph G. Echols Memorial Hall Host: Norfolk State University


 * Third Place - Norfolk State 102, Virginia Union 93

South Central - Cape Girardeau, Missouri
Location: Show Me Center Host: Southeast Missouri State University


 * Third Place - West Texas State 98, Southern Indiana 92*

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


 * Third Place - Ferris State 88, Southwest Baptist 80*

North Central - Grand Forks, North Dakota
Location: Hyslop Sports Center Host: University of North Dakota


 * Third Place - South Dakota 101, Alaska–Anchorage 92

South - Lakeland, Florida
Location: Jenkins Field House Host: Florida Southern College


 * Third Place - Florida Southern 92, Tampa 82

* denotes each overtime played

Elite Eight - Springfield, Massachusetts
Location: Springfield Civic Center Hosts: American International College and Springfield College

* denotes each overtime played
 * Third Place - North Dakota 98, Morehouse 77

All-tournament team

 * Corey Crowder (Kentucky Wesleyan)
 * LeRoy Ellis (Kentucky Wesleyan)
 * Wade Green (Cal State Bakersfield)
 * Vincent Mitchell (Kentucky Wesleyan)
 * Dave Vonesh (North Dakota)