The 2008–09 NCAA Division I men's ice hockey season began on October 10, 2008 and concluded with the 2009 NCAA Division I men's ice hockey tournament's championship game on April 11, 2009 at the Verizon Center in Washington, D.C. Over the course of the season, five teams achieved the nation's #1 ranking, with Boston University finishing the season as the top-ranked team after winning the national championship tournament.

Shootout winners receive one point and an addition to their total number of ties, and as a bonus, receive one bonus point and an addition to their total number of shootout wins.

[1] Note: * denotes overtime period(s) [3] The following players led the league in points at the conclusion of the season.

[4] GP = Games played; G = Goals; A = Assists; Pts = Points; PIM = Penalty minutes 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.

[4] 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