The 1966 WCHA Men's Ice Hockey Tournament was the 7th conference playoff in league history. The tournament was played between March 3 and March 5, 1966. All games were played at home team campus sites. By being declared as co-champions, both Michigan State and Denver were invited to participate in the 1966 NCAA University Division Men's Ice Hockey Tournament. Though not official designations, Michigan State is considered as the East Regional Champion† and Denver as the West Regional Champion‡.