2023 NCAA Division III men's ice hockey tournament

The 2023 NCAA Division III Men's Ice Hockey Tournament was the culmination of the 2022–23 season, the 38th such tournament in NCAA history. Hobart defeated defending champion Adrian 3–2 in overtime to win the program's first national championship.

Qualifying teams
Before the season, the NCAA amended its bylaws, lowering the requirement for conferences to receive automatic qualifiers from seven conference members to six. This meant that the WIAC champion would now be guaranteed a spot in the tournament field.

Twelve teams qualified for the tournament in the following ways: (Pool A) nine teams received bids as a result of being conference tournament champions from conferences that possessed an automatic bid, (Pool C) three additional teams received at-large bids based upon their records.

Format
The tournament featured four rounds of play. All rounds were single-game elimination.

The top four rated teams received byes into the quarterfinal round and were arranged so that if they were to advance to the semifinals, the first seed would play the fourth seed and the second seed would play the third seed. Because there were three western teams and only one received a bye into the quarterfinals, all three were placed into the same bracket. Of the nine eastern teams, the six that did not receive byes were arranged so that the fourth eastern seed played the ninth eastern seed with the winner advancing to play the third eastern seed; the fifth eastern seed played the eighth eastern seed with the winner advancing to play the second eastern seed; and the sixth eastern seed played the seventh eastern seed with the winner advancing to play the first eastern seed. The higher-seeded team played host in all first round and quarterfinal matches.

Bracket
Note: * denotes overtime period(s)

All-Tournament Team
* Most Outstanding Player(s)
 * G: Damon Beaver* (Hobart)
 * D: Austin Mourar (Hobart)
 * D: Jaden Shields (Adrian)
 * F: Luke Aquaro (Hobart)
 * F: Wil Crane (Hobart)
 * F: Ty Enns (Adrian)