Back Erste Bank Open 2021 Catalan Erste Bank Open 2021 Czech Erste Bank Open 2021 German Torneo de Viena 2021 Spanish Tournoi de tennis de Vienne (ATP 2021) French Erste Bank Open 2021 Italian ATP-toernooi van Wenen 2021 Dutch Erste Bank Open 2021 NB Vienna Open 2021 Polish Erste Bank Open 2021 Russian
| 2021 Erste Bank Open | |
|---|---|
| Date | 25–31 October |
| Edition | 47th |
| Category | ATP Tour 500 Series |
| Draw | 32S / 16D |
| Prize money | €1,952,015 |
| Surface | Hard (indoor) |
| Location | Vienna, Austria |
| Venue | Wiener Stadthalle |
| Champions | |
| Singles | |
 Alexander Zverev[1] | |
| Doubles | |
 Juan Sebastián Cabal / Robert Farah[2] | |
The 2021 Erste Bank Open was a men's tennis tournament played on indoor hard courts. It was the 47th edition of the event, and part of the ATP Tour 500 Series of the 2021 ATP Tour. It was held at the Wiener Stadthalle in Vienna, Austria, from 25 until 31 October 2021. Second-seeded Alexander Zverev won the singles title.[3]
- ^ "2021 Vienna – Singles draw". Association of Tennis Professionals (ATP).
- ^ "2021 Vienna – Doubles draw". Association of Tennis Professionals (ATP).
- ^ "Erste Bank Open Overview". atptour.com.