2002–03 NCAA Division I men's ice hockey season

The 2002–03 NCAA Division I men's ice hockey season began on October 4, 2002, and concluded with the 2003 NCAA Division I Men's Ice Hockey Tournament's championship game on April 12, 2003, at the HSBC Arena in Buffalo, New York. This was the 56th season in which an NCAA ice hockey championship was held and is the 109th year overall where an NCAA school fielded a team. The 2002–03 season was the final year for the MAAC hockey conference when Iona and Fairfield ended their programs at the conclusion of the season.

The NCAA Division I Men's Ice Hockey Tournament expanded to 16 teams for the first time in 2003. As a result, two regional sites were added for the new Northeast and Midwest brackets.

Pre-season polls
The top teams in the nation as ranked before the start of the season.

The U.S. College Hockey Online poll was voted on by coaches, media, and NHL scouts. The USA Today/American Hockey Magazine poll was voted on by coaches and media.

Final regular season polls
The top 15 teams ranked before the NCAA tournament.

2003 NCAA Tournament
Note: * denotes overtime period(s)

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

2003 NHL Entry Draft
† incoming freshman