2026 ABN AMRO Open – Singles
| Singles | |
|---|---|
| 2026 ABN AMRO Open | |
| Champion | Alex de Minaur |
| Runner-up | Félix Auger-Aliassime |
| Score | 6–3, 6–2 |
| Draw | 32 (4 Q / 3 WC ) |
| Seeds | 8 |
Alex de Minaur defeated Félix Auger-Aliassime in the final, 6–3, 6–2 to win the singles tennis title at the 2026 Rotterdam Open. It was his first title at the event, following runner-up finishes the previous two years, and 11th ATP Tour title overall. De Minaur became the first player in tournament history to reach three consecutive finals.
Carlos Alcaraz was the reigning champion, but withdrew before the tournament began.
The first-round match between Stan Wawrinka (40 years, 320 days) and Thijs Boogaard (17 years, 221 days) marked the largest age gap between two players in an ATP Tour singles main-draw match since the 2011 Vienna Open first-round match between Thomas Muster and Dominic Thiem, and the second-largest gap overall since the establishment of the ATP Tour in 1990.