2008 Bank Austria-TennisTrophy – Singles

Novak Djokovic was the defending champion, but chose not to participate that year.

Philipp Petzschner won in the final 6–4, 6–4, against Gaël Monfils.

Seeds
• # Stanislas Wawrinka (first round)

• # Fernando González (quarterfinals)

• # 🇦🇷 Juan Martín del Potro (second round, withdrew due to a left toe injury)

• # Ivo Karlović (first round)

• # 🇪🇸 Fernando Verdasco (quarterfinals)

• # 🇪🇸 Tommy Robredo (withdrew due to a left hip injury)

• # 🇫🇷 Gilles Simon (first round)

• # 🇫🇷 Gaël Monfils (final)