Conference | Regular season first place | Conference player of the year | Conference Coach of the Year | Conference tournament | Tournament venue (city) | Tournament winner |
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| Louisiana Tech & | Tony Harris, New Orleans | | 1990 American South Conference men's basketball tournament | Convocation Center Jonesboro, Arkansas | New Orleans |
| Temple | Kenny Green, Rhode Island | Bruce Parkhill, Penn State | 1990 Atlantic 10 men's basketball tournament | The Palestra & Philadelphia, Pennsylvania | Temple |
| Clemson | Dennis Scott, | Cliff Ellis, Clemson | 1990 ACC men's basketball tournament | Charlotte Coliseum Charlotte, North Carolina | Georgia Tech |
| Connecticut & Syracuse | Derrick Coleman, Syracuse | Jim Calhoun, Connecticut | 1990 Big East men's basketball tournament | Madison Square Garden New York, New York | Connecticut |
| Missouri | Doug Smith, Missouri | Roy Williams, Kansas | 1990 Big Eight Conference men's basketball tournament | Kemper Arena Kansas City, Missouri | Oklahoma |
| Idaho | Riley Smith, Idaho | Bob Hofman, Eastern Washington | 1990 Big Sky Conference men's basketball tournament | BSU Pavilion Boise, Idaho | Idaho |
| Coastal Carolina | Tony Dunkin, Coastal Carolina | Russ Bergman, Coastal Carolina | 1990 Big South Conference men's basketball tournament | Winthrop Coliseum Rock Hill, South Carolina | Coastal Carolina |
| Michigan State | Steve Scheffler, Purdue | Gene Keady, Purdue | No Tournament |
| UNLV | Larry Johnson, UNLV | Neil McCarthy, | 1990 Big West Conference men's basketball tournament | Long Beach Arena Long Beach, California | UNLV |
| James Madison | Steve Hood, James Madison | Lefty Driesell, James Madison | 1990 CAA men's basketball tournament | Richmond Coliseum Richmond, Virginia | Richmond |
| Hofstra, Lehigh, & | Kurk Lee, Towson State | Dave Duke, Lehigh | 1990 East Coast Conference men's basketball tournament | Towson Center Towson, Maryland | Towson State |
| Princeton | Kit Mueller, Princeton | Not named | No Tournament |
| Louisville | Clarence Weatherspoon, Southern Mississippi | Bob Huggins, Cincinnati | 1990 Metro Conference men's basketball tournament | Mississippi Coast Coliseum Biloxi, Mississippi | Louisville |
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| Lionel Simmons, La Salle | George Blaney, Holy Cross | 1990 MAAC men's basketball tournament | Knickerbocker Arena Albany, New York | La Salle |
| Ball State | Dave Jamerson, Ohio | Jim McDonald, Kent State | 1990 MAC men's basketball tournament | Cobo Arena Detroit, Michigan | Ball State |
| SW Missouri State | Lee Campbell, SW Missouri State | Dick Bennett, | 1990 Mid-Continent Conference men's basketball tournament | UNI-Dome Cedar Falls, Iowa | Northern Iowa |
| Coppin State | Larry Stewart, Coppin State | Fang Mitchell, Coppin State | 1990 MEAC men's basketball tournament | Greensboro Coliseum Greensboro, North Carolina | Coppin State |
| Xavier | Tyrone Hill, Xavier | Pete Gillen, Xavier | 1990 Midwestern Collegiate Conference men's basketball tournament | UD Arena Dayton, Ohio | Dayton |
| Southern Illinois | Bob Harstad, Creighton | Rich Herrin, Southern Illinois | 1990 Missouri Valley Conference men's basketball tournament | Redbird Arena Normal, Illinois | Illinois State |
| Northeastern | Steven Key, | Mike Jarvis, Boston University | 1990 North Atlantic Conference men's basketball tournament | Hartford Civic Center Hartford, Connecticut | Boston University |
| Robert Morris | Desi Wilson, Fairleigh Dickinson | Jarrett Durham, Robert Morris | 1990 Northeast Conference men's basketball tournament | Charles L. Sewall Center Moon Township, Pennsylvania | Robert Morris |
| Murray State | Popeye Jones, Murray State | Steve Newton, Murray State | 1990 Ohio Valley Conference men's basketball tournament | Racer Arena Murray, Kentucky | Murray State |
| Arizona & Oregon State | Gary Payton, Oregon State | Jimmy Anderson, Oregon State | 1990 Pacific-10 Conference men's basketball tournament | University Activity Center Tempe, Arizona | Arizona |
| Georgia | Chris Jackson, LSU | Tommy Joe Eagles, Auburn | 1990 SEC men's basketball tournament | Orlando Arena Orlando, Florida | Alabama |
| East Tennessee State | Keith Jennings, East Tennessee State, & John Taft, Marshall | Dana Altman, Marshall, & Les Robinson East Tennessee State | 1990 Southern Conference men's basketball tournament | Asheville Civic Center Asheville, North Carolina | East Tennessee State |
| Northeast Louisiana | Anthony Pullard, McNeese State | Mike Vining, Northeast Louisiana | 1990 Southland Conference men's basketball tournament | Fant–Ewing Coliseum Monroe, Louisiana | Northeast Louisiana |
| Arkansas | Travis Mays, Texas | Nolan Richardson, Arkansas | 1990 Southwest Conference men's basketball tournament | Reunion Arena Dallas, Texas | Arkansas |
| Southern | Joe Faulkner, Southern | | 1990 SWAC men's basketball tournament | Health and Physical Education Arena Houston, Texas | Texas Southern |
| UAB | Chris Gatling, Old Dominion | Bobby Paschal, South Florida | 1990 Sun Belt Conference men's basketball tournament | Birmingham–Jefferson Civic Center Birmingham, Alabama | South Florida |
| Centenary | Larry Robinson, Centenary | Tommy Vardeman, Centenary | 1990 TAAC men's basketball tournament | Barton Coliseum Little Rock, Arkansas | Arkansas–Little Rock |
| Loyola Marymount | Bo Kimble, Loyola Marymount | Paul Westhead, Loyola Marymount | 1990 West Coast Athletic Conference men's basketball tournament | Gersten Pavilion Los Angeles, California | Semifinals and championship canceled |
| BYU & Colorado State | Mike Mitchell, Colorado State | Roger Reid, BYU | 1990 WAC men's basketball tournament | Special Events Center El Paso, Texas | UTEP | |
A number of teams changed coaches during the season and after it ended.