2023 Monte-Carlo Masters – Singles
Andrey Rublev defeated Holger Rune in the final, 5–7, 6–2, 7–5 to win the men's singles tennis title at the 2023 Monte-Carlo Masters. It was his first Masters 1000 title. Rune was the first teenager to reach the Monte-Carlo Masters final since Rafael Nadal in 2006.
Stefanos Tsitsipas was the two-time defending champion, but lost in the quarterfinals to Taylor Fritz.