The 1955–56 NCAA men's ice hockey season began in November 1955 and concluded with the 1956 NCAA Men's Ice Hockey Tournament's championship game on March 17, 1956, at the Broadmoor Ice Palace in Colorado Springs, Colorado. This was the 9th season in which an NCAA ice hockey championship was held and is the 62nd year overall where an NCAA school fielded a team.
Clarkson completed the first undefeated season, going 23–0, since the inception of the NCAA tournament. As of 2016 only Cornell (in 1970) has been able to accomplish the same feat.
† indicates conference regular season champion Note: All games played between league members counted in the standings. When teams played each other twice, two points were awarded for a win, one point for a tie.
When teams met each other four times, one point was awarded for a win, one-half point for a tie. Maximum of 24 points available.[1]
The following goaltenders led the league in goals against average at the end of the regular season while playing at least 33% of their team's total minutes.
GP = Games played; Min = Minutes played; W = Wins; L = Losses; OT = Overtime/shootout losses; GA = Goals against; SO = Shutouts; SV% = Save percentage; GAA = Goals against average