2009 Pilot Pen Tennis – Women's singles

Caroline Wozniacki was the defending champion, and won in the final 6–2, 6–4 against Elena Vesnina.

Seeds

 * 1) 🇷🇺 Svetlana Kuznetsova (quarterfinals)
 * 2)  Caroline Wozniacki (champion)
 * 3) 🇮🇹 Flavia Pennetta (semifinals)
 * 4) 🇷🇺 Nadia Petrova (first round)
 * 5) 🇵🇱 Agnieszka Radwańska (second round; retired due to right hand injury)
 * 6) 🇫🇷 Marion Bartoli (second round; retired due to a left adductor strain)
 * 7) 🇸🇰 Dominika Cibulková (withdrew due to right rib injury)
 * 8) 🇫🇷 Amélie Mauresmo (semifinals)
 * 9) 🇦🇺 Samantha Stosur (second round)