| 2025 Erste Bank Open | |
|---|---|
| Date | 20–26 October | 
| Edition | 51st | 
| Category | ATP 500 tournaments | 
| Draw | 32S / 16D | 
| Surface | Hard (indoor) | 
| Location | Vienna, Austria | 
| Venue | Wiener Stadthalle | 
| Champions | |
| Singles | |
|  Jannik Sinner | |
| Doubles | |
|  Julian Cash /  Lloyd Glasspool | |
The 2025 Erste Bank Open was a men's tennis tournament played on indoor hard courts. It was the 51st edition of the event, and part of the ATP 500 tournaments of the 2025 ATP Tour. It was held at the Wiener Stadthalle in Vienna, Austria, from 20 until 26 October 2025. [1] [2]
 Jannik Sinner  def.
  Jannik Sinner  def.   Alexander Zverev, 3–6, 6–3, 7–5
  Alexander Zverev, 3–6, 6–3, 7–5 Julian Cash  /
  Julian Cash  /   Lloyd Glasspool  def.
  Lloyd Glasspool  def.   Francisco Cabral /
  Francisco Cabral /   Lucas Miedler, 6–1, 7–6(8–6)
  Lucas Miedler, 6–1, 7–6(8–6)| Country | Player | Rank1 | Seed | 
|---|---|---|---|
|  ITA | Jannik Sinner | 2 | 1 | 
|  GER | Alexander Zverev | 3 | 2 | 
|  AUS | Alex de Minaur | 7 | 3 | 
|  ITA | Lorenzo Musetti | 8 | 4 | 
| Karen Khachanov | 10 | 5 | |
| Daniil Medvedev | 14 | 6 | |
| Andrey Rublev | 15 | 7 | |
|  KAZ | Alexander Bublik | 16 | 8 | 
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
 Grigor Dimitrov → replaced by
  Grigor Dimitrov → replaced by   Nuno Borges
  Nuno Borges  Tommy Paul → replaced by
  Tommy Paul → replaced by   Daniel Altmaier
  Daniel Altmaier  Frances Tiafoe → replaced by
  Frances Tiafoe → replaced by   Camilo Ugo Carabelli
  Camilo Ugo Carabelli  Stefanos Tsitsipas → replaced by
  Stefanos Tsitsipas → replaced by   Hamad Medjedovic
  Hamad Medjedovic | Country | Player | Country | Player | Rank1 | Seed | 
|---|---|---|---|---|---|
|  ESA | Marcelo Arévalo |  CRO | Mate Pavić | 4 | 1 | 
|  GBR | Julian Cash |  GBR | Lloyd Glasspool | 5 | 2 | 
|  FIN | Harri Heliövaara |  GBR | Henry Patten | 10 | 3 | 
|  GBR | Joe Salisbury |  GBR | Neal Skupski | 21 | 4 | 
The following pairs received wildcards into the doubles main draw:
The following pair received entry from the qualifying draw:
The following pairs received entry as lucky losers:
 Flavio Cobolli /
  Flavio Cobolli /   Corentin Moutet → replaced by
  Corentin Moutet → replaced by   Ariel Behar /
  Ariel Behar /   Joran Vliegen
  Joran Vliegen  Alex Michelsen /
  Alex Michelsen /   John Peers → replaced by
  John Peers → replaced by   Fernando Romboli /
  Fernando Romboli /   John-Patrick Smith
  John-Patrick Smith