The 1973 NCAA Division I men's ice hockey tournament was the 26th such tournament in NCAA history. It was held between March 15 and 17, 1973, and concluded with Wisconsin defeating Denver 4 to 2. All games were played at the Boston Garden in Boston, Massachusetts. 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. After the tournament Denver's participation was vacated as a result of NCAA recruiting violations