2006 Austrian Open – Singles

Gastón Gaudio was the defending champion, but lost in the quarterfinals to Agustín Calleri.

Calleri went on to win the title, defeating Juan Ignacio Chela 7–6(11–9), 6–2, 6–3 in the final.

Seeds
• # 🇷🇺 Nikolay Davydenko (second round)

• # 🇪🇸 Tommy Robredo (second round)

• # 🇫🇮 Jarkko Nieminen (third round)

• # 🇦🇷 Gastón Gaudio (quarterfinals)

• # 🇪🇸 Fernando Verdasco (semifinals)

• # Nicolás Massú (third round)

• # 🇦🇷 Juan Ignacio Chela (final)

• # 🇷🇺 Mikhail Youzhny (semifinals)

• # 🇦🇷 Agustín Calleri (champion)

• # 🇧🇾 Max Mirnyi (third round)

• # 🇵🇪 Luis Horna (second round, retired)

• # 🇮🇹 Andreas Seppi (second round)

• # 🇩🇪 Philipp Kohlschreiber (quarterfinals)

• # 🇧🇪 Christophe Rochus (second round)

• # Boris Pašanski (second round)

• # 🇷🇴 Andrei Pavel (third round)