| Nations participating | 78 |
|---|---|
| Athletes participating | 2,939 |
| Events | 10 sports |
| Opening ceremony | August 17 |
| Closing ceremony | August 28 |
| Officially opened by | Todor Zhivkov |
| Main venue | Vassil Levski Stadion |
The 1977 Summer Universiade, also known as the IX Summer Universiade, took place in Sofia, Bulgaria.