The 1977 NCAA Division III men's basketball tournament was the third annual single-elimination tournament to determine the men's collegiate basketball national champion of National Collegiate Athletic Association (NCAA) Division III, held during March 1977.
The tournament field included 30 teams, an increase of two from 1976, and the national championship rounds were contested in Rock Island, Illinois.
Wittenberg, runners up from 1976, defeated Oneonta State, 79–66, in the championship game to win their first national title.