2011 Erste Bank Open – Singles

Jürgen Melzer was the two-time defending champion, but lost to Kevin Anderson in the quarterfinals.

No.1 seed Jo-Wilfried Tsonga won the tournament beating No. 2 seed Juan Martín del Potro in the final, 6–7(5–7), 6–3, 6–4.

Seeds
The top four seeds receive a bye into the second round. • # 🇫🇷 Jo-Wilfried Tsonga (champion)

• # 🇦🇷 Juan Martín del Potro (final)

• # 🇦🇹 Jürgen Melzer (quarterfinals)

• # 🇨🇿 Radek Štěpánek (second round)

• # 🇦🇷 Juan Ignacio Chela (first round)

• # Kevin Anderson (semifinals)

• # 🇷🇺 Nikolay Davydenko (first round)

• # 🇮🇹 Fabio Fognini (second round)