1955–56 NCAA Division I men's ice hockey season

The 1955–56 NCAA Division I men's ice hockey season began in November 1955 and concluded with the 1956 NCAA Division I 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.

1956 NCAA Tournament
Note: * denotes overtime period(s)

Player stats
===Scoring leaders === The following players led the league in points at the conclusion of the season.

GP = Games played; G = Goals; A = Assists; Pts = Points; PIM = Penalty minutes

Leading goaltenders
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

WIHL
No Awards