| Champ: |  Taro Daniel |
| Runner: |  Malek Jaziri |
| Score: | 7–6(7–4), 6–4 |
| Draw: | 28 (4 / 3) |
| Seeds: | 8 |
| Type: | singles doubles |
| After Year: | no |
See main article: 2018 Istanbul Open.
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.
The top four seeds receive a bye into the second round.