| Teams | 8 |
|---|---|
| Finals site | |
| Champions | Wisconsin–Stevens Point Pointers (3rd title) |
| Runner-up | Mankato State (1st title game) |
| Semifinalists |
|
| Winning coach | Mark Mazzoleni (3rd title) |
| Attendance | 16,701 |
The 1991 NCAA Division III men's ice hockey tournament was the culmination of the 1990–91 season, the 8th such tournament in NCAA history. It concluded with Wisconsin-Stevens Point defeating Mankato State in the championship game 6-2. All Quarterfinals matchups were held at home team venues, while all succeeding games were played in Elmira, New York.
The NCAA stopped awarding the Tournament Most Outstanding Player with this tournament. The next tournament MOP would be awarded in 2009.