The 1977 Belgian International Championships was a men's tennis tournament staged at the Leopold Club in Brussels, Belgium that was part of the Grand Prix circuit and categorized as a Two star event. The tournament was played on outdoor clay courts and was held from 6 June until 12 June 1977. It was the sixth edition of the tournament and first-seeded Harold Solomon won the singles title.
|1977 Belgian International Championships|
|Category||Grand Prix (Two star)|
|Draw||48S / 24D|
|Surface||Clay / outdoor|
| Željko Franulović / Nikola Pilić |
František Pála / Balázs Taróczy
- It was Solomon's 1st singles title of the year and the 11th of his career.