| Division: | II |
| Year: | 1975 |
| Teams: | 32 |
| Finalfourcity: | Evansville, Indiana |
| Champions: | Old Dominion Monarchs |
| Titlecount: | 1st |
| Runnerup: | New Orleans Privateers |
| Gamecount: | 1st |
| Semifinal1: | Assumption Greyhounds |
| Finalfourcount: | 3rd |
| Semifinal2: | Tennessee State Tigers |
| Finalfourcount2: | 4th |
| Coach: | Sonny Allen |
| Coachcount: | 1st |
| Mop: | Wilson Washington |
| Mopteam: | Old Dominion |
| Attendance: | 12,909 |
The 1975 NCAA Division II 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 1974–75 NCAA Division II men's basketball season. It was won by Old Dominion University and Old Dominion's Wilson Washington was the Most Outstanding Player.
| School | Outcome | |
|---|---|---|
| Assumption | Regional Champion | |
| Bentley | Runner-up | |
| Hartford | Third Place | |
| Sacred Heart | Fourth Place | |
| School | Outcome | |
|---|---|---|
| C. W. Post | Runner-up | |
| Gannon | Regional Champion | |
| Hartwick | Fourth Place | |
| Philadelphia U | Third Place | |
| School | Outcome | |
|---|---|---|
| Lincoln (MO) | Runner-up | |
| New Orleans | Regional Champion | |
| Southern | Third Place | |
| West Georgia | Fourth Place | |
| School | Outcome | |
|---|---|---|
| Puget Sound | Runner-up | |
| UC Davis | Third Place | |
| UC Irvine | Fourth Place | |
| UC Riverside | Regional Champion | |
| School | Outcome | |
|---|---|---|
| Augustana (SD) | Third Place | |
| Missouri-Rolla | Fourth Place | |
| Nebraska-Omaha | Runner-up | |
| North Dakota | Regional Champion | |
| School | Outcome | |
|---|---|---|
| Baltimore | Third Place | |
| Morgan State | Fourth Place | |
| Old Dominion | Regional Champion | |
| Randolph-Macon | Runner-up | |
| School | Outcome | |
|---|---|---|
| Alabama State | Fourth Place | |
| Armstrong Atlantic | Third Place | |
| Chattanooga | Runner-up | |
| Tennessee State | Regional Champion | |
| School | Outcome | |
|---|---|---|
| Akron | Regional Champion | |
| Eastern Illinois | Third Place | |
| St. Joseph's (IN) | Runner-up | |
| Youngstown State | Fourth Place | |
*denotes tie
Location: Dana Center Host: Bentley College
Location: Hammermill Center Host: Gannon University
Location: Human Performance Center Host: University of New Orleans
Location: Crawford Hall Host: University of California, Irvine
Location: Hyslop Sports Center Host: University of North Dakota
Location: Norfolk Scope Host: Old Dominion University
Location: Maclellan Gymnasium Host: University of Tennessee at Chattanooga
Location: Lantz Arena Host: Eastern Illinois University
*denotes each overtime played
Location: Roberts Municipal Stadium Host: University of Evansville
*denotes each overtime played