The 1975 NCAA Division I men's ice hockey tournament was the 28th such tournament in NCAA history. It was held between March 13 and 15, 1975, and concluded with Michigan Tech defeating Minnesota 6 to 1. All games were played at the St. Louis Arena in St. Louis, Missouri. Four teams qualified for the tournament, two each from the eastern and western regions. The ECAC tournament champion and the two WCHA tournament co-champions received automatic bids into the tournament. An at-large bid was offered to a second eastern team based upon both their ECAC tournament finish as well as their regular season record.