2023 Monte-Carlo Masters – Singles
| Singles | |
|---|---|
| 2023 Monte-Carlo Masters | |
| Champion | Andrey Rublev |
| Runner-up | Holger Rune |
| Score | 5–7, 6–2, 7–5 |
| Draw | 56 (7 Q / 4 WC) |
| Seeds | 16 |
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 ATP Tour Masters 1000 title. 19-year-old Rune became 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. Tsitsipas’ defeat guaranteed a new champion for the tournament.