2018 Kremlin Cup – Men's singles
| Men's singles | |
|---|---|
| 2018 Kremlin Cup | |
| Champion | Karen Khachanov |
| Runner-up | Adrian Mannarino |
| Score | 6–2, 6–2 |
| Draw | 28 (4 Q / 3 WC ) |
| Seeds | 8 |
Damir Džumhur was the defending champion, but lost to Egor Gerasimov in the first round.
Karen Khachanov won the title, defeating Adrian Mannarino in the final, 6–2, 6–2.