The 2004 East Regional of the NCAA Tournament took place March 26 and 27, 2004, at Pepsi Arena in Albany, New York. The regional was hosted by Rensselaer Polytechnic Institute. The participants were: * 1. Maine Black Bears * 2. Ohio State Buckeyes * 3. Wisconsin Badgers * 4. Harvard Crimson Wisconsin advanced to the NCAA Tournament by way of an at-large bid. Maine was the Hockey East champion. Ohio State was the CCHA champion. Harvard was the ECAC champion.