2018 Barcelona Open Banco Sabadell – Singles
| Singles | |
|---|---|
| 2018 Barcelona Open Banco Sabadell | |
| Champion | Rafael Nadal |
| Runner-up | Stefanos Tsitsipas |
| Score | 6–2, 6–1 |
| Draw | 48 (6 Q / 5 WC ) |
| Seeds | 16 |
Two-time defending champion Rafael Nadal defeated Stefanos Tsitsipas in the final, 6–2, 6–1 to win the singles tennis title at the 2018 Barcelona Open. Nadal did not drop a set en route to his record-extending eleventh Barcelona Open title and his 20th ATP 500 title overall, equaling Roger Federer's record. He retained the world No. 1 singles ranking with the win. It was Tsitsipas' first ATP Tour final.