The Monte-Carlo Masters, officially known as the Rolex Monte-Carlo Masters due to sponsorship, is an annual tennis tournament for male professional players. It takes place in Roquebrune-Cap-Martin, France, near Monaco, and is played on the clay courts of the Monte Carlo Country Club each April. This tournament is one of the nine ATP Tour Masters 1000 events. 

Rafael Nadal holds the record for the most men’s singles titles, having won eleven times.