The 1965 ECAC Hockey Men's Ice Hockey Tournament was the 4th tournament in league history. It was played between March 9 and March 13, 1965. Quarterfinal games were played at home team campus sites, while the 'final four' games were played at the Boston Arena in Boston, Massachusetts. By reaching the championship game both, Boston College and Brown received invitations to participate in the 1965 NCAA University Division Men's Ice Hockey Tournament.