1980 Monte Carlo Open

The 1980 Monte Carlo Open was a men's tennis tournament played on outdoor clay courts at the Monte Carlo Country Club in Roquebrune-Cap-Martin, France that was part of the 1980 Volvo Grand Prix circuit. It was the 74th edition of the tournament and was held from 31 March through 6 April 1980. First-seeded Björn Borg won the singles title, his third after 1977 and 1979.

Singles
🇸🇪 Björn Borg defeated 🇦🇷 Guillermo Vilas 6–1, 6–0, 6–2
 * It was Borg's 4th singles title of the year and the 56th of his career.

Doubles
🇮🇹 Paolo Bertolucci / 🇮🇹 Adriano Panatta defeated 🇺🇸 Vitas Gerulaitis / 🇺🇸 John McEnroe 6–2, 5–7, 6–3