2012 Erste Bank Open – Singles

Jo-Wilfried Tsonga was the defending champion but decided to compete at the If Stockholm Open instead. Juan Martín del Potro won the title, defeating Grega Žemlja 7–5, 6–3 in the final.

Seeds
The first four seeds received a bye into the second round.

• # 🇦🇷 Juan Martín del Potro (champion)

• # 🇷🇸 Janko Tipsarević (semifinals)

• # 🇩🇪 Tommy Haas (quarterfinals)

• # 🇦🇹 Jürgen Melzer (second round)

• # 🇮🇹 Fabio Fognini (first round)

• # Robin Haase (first round)

• # 🇫🇷 Benoît Paire (first round)

• # 🇧🇪 Xavier Malisse (first round)

Seeds
• # 🇸🇮 Grega Žemlja (qualified)

• # 🇧🇪 Ruben Bemelmans (qualified)

• # 🇨🇦 Vasek Pospisil (qualified)

• # 🇩🇪 Daniel Brands (qualified)

• # 🇩🇪 Matthias Bachinger (qualifying competition)

• # 🇫🇷 Florent Serra (first round)

• # 🇩🇪 Dustin Brown (qualifying competition)

• # 🇫🇷 Adrian Mannarino (first round)

Qualifiers
• # Grega Žemlja

• # 🇧🇪 Ruben Bemelmans

• # 🇨🇦 Vasek Pospisil

• # 🇩🇪 Daniel Brands