| Singles | |
|---|---|
| 1977 Romika Cup | |
| Champion |
|
| Runner-up |
|
| Final score | 6–1, 6–1, 6–7, 7–5 |
Manuel Orantes was the defending champion, but did not participate this year.
Željko Franulović won the title, defeating Victor Pecci Sr. 6–1, 6–1, 6–7, 7–5 in the final.