1973 Monte Carlo Open – Singles

The 1973 Monte Carlo Open – Singles was an event of the 1973 Monte Carlo Open tennis tournament and was played at the Monte Carlo Country Club in Roquebrune-Cap-Martin, France between 16 April through 21 April 1973. Ilie Năstase was the defending champion and was top-seeded player. He retained his singles title, defeating Björn Borg in the final, 6–4, 6–1, 6–2.

Seeds
• 🇷🇴 Ilie Năstase (champion)

• 🇪🇸 Manuel Orantes (second round)

• 🇮🇹 Adriano Panatta (quarterfinals)

• 🇫🇷 Patrick Proisy (semifinals)

• 🇪🇸 Andrés Gimeno (second round)

• 🇷🇴 Ion Țiriac (third round)

• Jiří Hřebec (second round)