The 2011–12 NCAA Division II men's ice hockey season began on October 21, 2011 and concluded on March 3 of the following year. This was the 30th season of second-tier college ice hockey.
Championship: March 3, 2012 † indicates conference regular season champion * indicates conference tournament champions Saint Anselm and Saint Michael's remained members of the ECAC East and only played a partial Northeast-10 schedule. As a result only one game between each of the conference members was counted in the standings.