The Basketball competitions in the 1977 Summer Universiade were held in Sofia, Bulgaria. The United States beat the Soviet Union in the final in the men's tournament, but was beaten in the women's competition.
Format.
In the men's tournament, 31 participants were divided into 7 groups of four teams and one group of three. They played a single round-robin match and the winners advanced to the second round and the others to the classification round. In the second round, two groups of four teams played round-robin matches and the top two teams of each group advanced to the semi-final. In the classification round, five groups of four teams and one group of three played round-robin matches and then advanced to the placement semi-finals and finals.
 Group 1 (1st - 8th) 
 Group 2 (9th - 16th)
 Group 3 (17th - 24th)
 Group 1 (1st - 8th)
 Group 2 (9th - 16th)
 Group 3 (17th - 24th)
Men's competition.
Second round.
Group 1 (1st - 8th) 
 Group 2 (9th - 16th)
 Group 3 (17th - 24th)
 Gold medal match
 Third-place match
 Fifth-place match
References.
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