The 1985 NCAA Division I men's ice hockey tournament was the culmination of the 1984?85 NCAA Division I men's ice hockey season, the 38th such tournament in NCAA history. It was held between March 22 and 30, 1985, and concluded with Rensselaer defeating Providence 2 to 1. The tournament featured three rounds of play. The two odd-number ranked teams from one region were placed into a bracket with the two even-number ranked teams of the other region. The teams were then seeded according to their ranking. In the Quarterfinals the first and fourth seeds and the second and third seeds played two-game aggregate series to determine which school advanced to the Semifinals. Beginning with the Semifinals all games were played at Joe Louis Arena in Detroit, Michigan and all became Single-game eliminations. The winning teams in the semifinals advanced to the National Championship Game with the losers playing in a Third Place game.