2018 Queen's Club Championships – Singles
| Singles | |
|---|---|
| 2018 Queen's Club Championships | |
| Champion | Marin Čilić |
| Runner-up | Novak Djokovic |
| Score | 5–7, 7–6(7–4), 6–3 |
| Draw | 32 |
| Seeds | 8 |
Marin Čilić defeated Novak Djokovic in the final, 5–7, 7–6(7–4), 6–3 to win the singles tennis title at the 2018 Queen's Club Championships. He saved a championship point in the second set. This was Djokovic's first ATP Tour final in almost a year, and Čilić's second victory over Djokovic in their 16 matches played.
Feliciano López was the defending champion, but lost in the quarterfinals to Nick Kyrgios.