2006 Porsche Tennis Grand Prix – Singles

Lindsay Davenport was the two-time defending champion, but chose not to participate that year.

Nadia Petrova won the title, defeating Tatiana Golovin in straight sets in the finals match.

Seeds
• # 🇫🇷 Amélie Mauresmo (withdrew because of a right shoulder injury)

• # 🇷🇺 Svetlana Kuznetsova (semifinals)

• # 🇷🇺 Elena Dementieva (quarterfinals, withdrew because of a left thigh injury)

• # 🇷🇺 Nadia Petrova (champion)

• # Patty Schnyder (semifinals)

• # 🇷🇺 Dinara Safina (second round)

• # 🇮🇹 Francesca Schiavone (first round, retired because of a right wrist injury)

• # Jelena Janković (quarterfinals)