| Champ: |  Pauline Parmentier |
| Runner: | Polona Hercog |
| Score: | 6–4, 3–6, 6–3 |
| Draw: | 32 |
| Seeds: | 8 |
| Type: | singles doubles |
| Before Name: | İstanbul Cup – Singles |
| After Name: | İstanbul Cup – Singles |
See main article: 2018 İstanbul Cup.
Elina Svitolina was the defending champion, but chose to compete in Stuttgart instead.
Pauline Parmentier won the title, her first since 2008, defeating Polona Hercog in the final, 6–4, 3–6, 6–3.[1]