2018 Istanbul Open – Singles
| Singles | |
|---|---|
| 2018 Istanbul Open | |
| Champion | Taro Daniel |
| Runner-up | Malek Jaziri |
| Score | 7–6(7–4), 6–4 |
| Draw | 28 (4 Q / 3 WC ) |
| Seeds | 8 |
Marin Čilić was the defending champion, but lost in the second round to Malek Jaziri.
Taro Daniel won his first ATP World Tour title, defeating Jaziri in the final, 7–6(7–4), 6–4.