1991 NCAA Division III men's ice hockey tournament

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.

There were no automatic bids, however, conference tournament champions were given preferential consideration.

No formal seeding was used, quarterfinal matches were arranged so that the road teams would have the shortest possible travel distances.

If both teams ended up with 2 points after the first two games a 20-minute mini-game used to determine a winner.