The 2025 NCAA Division I Men's Ice Hockey Tournament was the national championship tournament for National Collegiate Athletic Association (NCAA) men's Division I college ice hockey in the United States. Held from March 27 to April 12, 2025, the tournament involved 16 teams in single-elimination play to determine the national champion for the top level of play. Western Michigan won their first national championship in program history.
This year's tournament was the first since 2019 to feature multiple programs (Connecticut and Bentley) making their first appearance in the NCAA hockey playoffs.
This year's Frozen Four, at Enterprise Center in St. Louis, Missouri, also featured multiple teams, Western Michigan and Penn State, making their first appearance. This last occurred in 2013, when Massachusetts-Lowell, Quinnipiac and St. Cloud State all made their first Frozen Four appearances. Western Michigan also became the first team since Lake Superior State in 1988 to win a championship in their first Frozen Four appearance.
The semifinal matchup between Denver and Western Michigan was the first Frozen Four game to require multiple overtime periods since a 1996 semifinal game between Vermont and Colorado College. With Western Michigan's 3-2 win over Denver in double overtime, they became the first team in NCAA Division I Men's Ice Hockey Tournament history to play in, and win, two multiple-overtime games in the same tournament.
The tournament was composed of four groups of four teams in regional brackets. The four regionals are named after the cities in which they take place. The following are the sites for the 2025 regionals:
Regional Semifinals and Finals
National semifinals and championship (Frozen Four and championship)
The at-large bids and seeding for each team in the tournament were announced on March 23, 2025, on ESPNU at 3:00 pm ET.
Hockey East received six bids to the tournament while the Big Ten received four. Both ECAC Hockey and NCHC received two bids while Atlantic Hockey America and the CCHA each received one.
<small>Number in parentheses denotes overall seed in the tournament.</small>
<small>Number in parentheses denotes overall seed in the tournament.</small><br> <small>* denotes overtime period</small>
<small>Note: All game times are local.</small>
<nowiki>*</nowiki> Most Outstanding Player
ESPN had US television rights to all games during the tournament for the twentieth consecutive year. ESPN aired each game either on ESPN2, ESPNU, or ESPN+.
Regionals
Frozen Four
Westwood One has exclusive radio rights to the Frozen Four and will broadcast both the semifinals and the championship.