| Champ: |  Pablo Andújar |
| Runner: |  Kyle Edmund |
| Score: | 6–2, 6–2 |
| Draw: | 32 (4 / 3) |
| Seeds: | 8 |
| Type: | singles doubles |
See main article: 2018 Grand Prix Hassan II.
Borna Ćorić was the defending champion, but withdrew before the tournament began.
Pablo Andújar won the title, defeating Kyle Edmund in the final, 6–2, 6–2. Ranked number 355, Andújar became the lowest ranked player to win the ATP title since Lleyton Hewitt at the 1998 Adelaide International.