1983 Big Sky Conference men's basketball tournament

The 1983 Big Sky Conference men's basketball tournament was held March 11–12 at Centennial Coliseum in Reno, Nevada.

Weber State defeated in the championship game 87–78 to clinch their fourth Big Sky tournament title. The Wildcats and Wolf Pack were the regular season co-champions, while Idaho was attempting to win a third consecutive title.

This was the twentieth season for the Big Sky and its first employing the three-point shot, for conference play only, with the line at 22 ft. The NCAA adopted the three-point shot for the 1986–87 season, at a considerably shorter 19 ft.

Format
First played in 1976, the Big Sky tournament had the same format for its first eight editions. The regular season champion hosted and only the top four teams from the standings took part, with seeding based on regular season records.

No teams made their inaugural tournament appearances this season. This year was the final Big Sky tournament with four teams; it expanded to include all eight teams in 1984.

The first tiebreaker in the standings were the head-to-head meetings; Nevada defeated Weber twice during the conference regular season, so the Wolf Pack won the regular season title. Montana defeated defending champion Idaho in both games to claim the third seed in the bracket.

Bracket

 * Source:

NCAA tournament
The Wildcats received an automatic bid to the 52-team NCAA tournament and were seeded ninth in the West region; they lost to Washington State by ten points in the first round in Boise, Idaho. No other Big Sky teams made the NCAA field; Idaho played in the 32-team NIT, the first-ever invite for the Big Sky, but lost in the first round to at Corvallis.