2023 Erste Bank Open
The 2023 Erste Bank Open was a men's tennis tournament played on indoor hard courts. It was the 49th edition of the event, and part of the ATP Tour 500 series of the 2023 ATP Tour. It was held at the Wiener Stadthalle in Vienna, Austria, from 23 until 29 October 2023.
Champions
Singles
- Jannik Sinner def. Daniil Medvedev, 7–6, 4–6, 6–3
- It was Sinner's 4th title of the year and the 10th of his career.
Doubles
- Rajeev Ram / Joe Salisbury def. Nathaniel Lammons / Jackson Withrow, 6–4, 5–7,
Points and prize money
Point distribution
Prize money
| Event | W | F | SF | QF | Round of 16 | Round of 32 | Q2 | Q1 |
| Singles | €450,650 | €242,480 | €129,225 | €66,025 | €35,245 | €18,795 | €9,635 | €5,405 |
| Doubles* | €148,020 | €78,950 | €39,940 | €19,970 | €10,340 |
*per team
Singles main-draw entrants
Seeds
- 1 Rankings as of 16 October 2023
Other entrants
The following player received entry into the singles main draw as a special exempt:
The following player using a protected ranking into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
- Lorenzo Sonego
Withdrawals
- Matteo Berrettini → replaced by Daniel Altmaier
- Pablo Carreño Busta → replaced by Aleksandar Vukic
- Borna Ćorić → replaced by Matteo Arnaldi
- Mackenzie McDonald → replaced by Lorenzo Sonego
Doubles main draw entrants
Seeds
- 1 Rankings as of 16 October 2023
Other entrants
- Romain Arneodo / Sam Weissborn
- Sebastian Ofner / Philipp Oswald
The following pairs received entry as lucky losers:
- Gonzalo Escobar / Aleksandr Nedovyesov
- Neil Oberleitner / Jurij Rodionov
Withdrawals
- Rohan Bopanna / Matthew Ebden → replaced by Sadio Doumbia / Fabien Reboul
- Dan Evans / Ben Shelton → replaced by Gonzalo Escobar / Aleksandr Nedovyesov
- Mackenzie McDonald / Marcelo Melo → replaced by Neil Oberleitner / Jurij Rodionov