2019 Erste Bank Open

The 2019 Erste Bank Open was a men's tennis tournament played on indoor hard courts. It was the 45th edition of the event, and part of the ATP Tour 500 Series of the 2019 ATP Tour. It was held at the Wiener Stadthalle in Vienna, Austria, from 21 October until 27 October 2019.

Seeds

 * Rankings are as of October 14, 2019

Other entrants
The following players received wildcards into the singles main draw:
 * 🇦🇹 Dennis Novak
 * 🇮🇹 Jannik Sinner
 * 🇫🇷 Jo-Wilfried Tsonga

The following player received entry as a special exempt:
 * 🇫🇷 Adrian Mannarino

The following players received entry from the qualifying draw:
 * Aljaž Bedene
 * 🇧🇦 Damir Džumhur
 * 🇭🇺 Márton Fucsovics
 * 🇩🇪 Philipp Kohlschreiber

The following player received entry as a lucky loser:
 * 🇰🇿 Alexander Bublik

Withdrawals

 * Before the tournament
 * 🇨🇦 Félix Auger-Aliassime → replaced by 🇰🇿 Alexander Bublik
 * 🇦🇷 Juan Martín del Potro → replaced by 🇷🇺 Andrey Rublev
 * 🇫🇷 Lucas Pouille → replaced by 🇫🇷 Pierre-Hugues Herbert
 * 🇦🇺 Nick Kyrgios → replaced by 🇮🇹 Lorenzo Sonego
 * 🇷🇺 Daniil Medvedev → replaced by 🇪🇸 Feliciano López
 * 🇯🇵 Kei Nishikori → replaced by 🇺🇸 Sam Querrey

Retirements

 * 🇪🇸 Pablo Carreño Busta
 * 🇭🇺 Márton Fucsovics

Seeds

 * 1 Rankings are as of October 14, 2019

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇦🇹 Sebastian Ofner / 🇦🇹 Tristan-Samuel Weissborn
 * 🇳🇿 Marcus Daniell / 🇦🇹 Philipp Oswald

The following pair received entry from the qualifying draw:
 * 🇬🇧 Luke Bambridge / 🇯🇵 Ben McLachlan

The following pair received entry as lucky losers:
 * Frederik Nielsen / 🇩🇪 Tim Pütz

Withdrawals

 * Before the tournament
 * Mate Pavić

Singles

 * 🇦🇹 Dominic Thiem defeated 🇦🇷 Diego Schwartzman, 3–6, 6–4, 6–3

Doubles

 * 🇺🇸 Rajeev Ram / 🇬🇧 Joe Salisbury defeated 🇵🇱 Łukasz Kubot / 🇧🇷 Marcelo Melo, 6–4, 6–7(5–7), [10–5]