1980 Belgian International Championships

The 1980 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. The tournament was played on outdoor clay courts and was held from 9 June until 15 June 1980. It was the ninth edition of the tournament and third-seeded Peter McNamara won the singles title.

Singles
🇦🇺 Peter McNamara defeated 🇭🇺 Balázs Taróczy 7–6, 6–3, 6–0
 * It was McNamara's 1st singles title of the year and the 2nd of his career.

Doubles
🇧🇪 Thierry Stevaux / 🇺🇸 Steve Krulevitz defeated 🇺🇸 Eric Fromm / 🇺🇸 Cary Leeds 6–3, 7–5