2011 Toray Pan Pacific Open – Singles

Agnieszka Radwańska defeated Vera Zvonareva in the final, 6–3, 6–2 to win the singles tennis title at the 2011 Pan Pacific Open.

Caroline Wozniacki was the defending champion, but lost to Kaia Kanepi in the third round.

Seeds
The top eight seeds received a bye into the second round. • # Caroline Wozniacki (third round)

• # 🇷🇺 Maria Sharapova (quarterfinals, retired due to a left ankle injury)

• # 🇧🇾 Victoria Azarenka (semifinals)

• # 🇷🇺 Vera Zvonareva (final)

• # 🇨🇿 Petra Kvitová (semifinals)

• # 🇦🇺 Samantha Stosur (second round)

• # 🇫🇷 Marion Bartoli (quarterfinals)

• # 🇷🇸 Jelena Janković (third round)

• # 🇵🇱 Agnieszka Radwańska (champion)

• # 🇨🇳 Peng Shuai (third round)

• # 🇷🇺 Anastasia Pavlyuchenkova (second round)

• # 🇷🇸 Ana Ivanovic (third round)

• # 🇩🇪 Julia Görges (third round)

• # 🇸🇰 Dominika Cibulková (second round)

• # 🇮🇹 Flavia Pennetta (first round)

• # 🇮🇱 Shahar Pe'er (second round)