The 2012–13 NCAA Division I men's ice hockey season began on October 6, 2012, and concluded with the 2013 NCAA Division I Men's Ice Hockey Tournament's championship game on April 13, 2013, at the Consol Energy Center in Pittsburgh, Pennsylvania.

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/USA Hockey Magazine poll was voted on by coaches and media.

Note: * denotes overtime period(s) GP = Games played; G = Goals; A = Assists; Pts = Points; PIM = Penalty minutes [1] GP = Games played; Min = Minutes played; W = Wins; L = Losses; T = Ties; GA = Goals against; SO = Shutouts; SV% = Save percentage; GAA = Goals against average