The 1966 NCAA University Division basketball tournament involved 22 schools playing in single-elimination play to determine the national men's basketball champion of the NCAA University Division, now Division I. The 28th annual edition of the tournament began on March 7, and ended with the championship game on March 19, at Cole Field House, located on the campus of the University of Maryland in College Park. A total of 26 games were played, including a third place game in each region and a national third place game.