2009 Western & Southern Financial Group Women's Open – Doubles

Maria Kirilenko and Nadia Petrova were the defending champions. Both were present that year, but chose to compete with different players.

Kirilenko partnered with Elena Vesnina, but lost in the second round to Nuria Llagostera Vives and María José Martínez Sánchez.

Petrova partnered with Bethanie Mattek-Sands, but lost in the quarterfinals to Cara Black and Liezel Huber.

Cara Black and Liezel Huber won in the final 6–3, 0–6, 10–2 against Nuria Llagostera Vives and María José Martínez Sánchez.

Seeds
The top four seeds receive a bye into the second round. • # Cara Black / 🇺🇸 Liezel Huber (champions)

• # 🇸🇰 Daniela Hantuchová / 🇯🇵 Ai Sugiyama (quarterfinals, withdrew)

• # Hsieh Su-wei / 🇨🇳 Peng Shuai (second round)

• # 🇮🇹 Flavia Pennetta / 🇺🇸 Lisa Raymond (second round)

• # 🇪🇸 Virginia Ruano Pascual / 🇨🇳 Zheng Jie (semifinals)

• # 🇩🇪 Anna-Lena Grönefeld / Patty Schnyder (first round)

• # 🇪🇸 Nuria Llagostera Vives / 🇪🇸 María José Martínez Sánchez (final)

• # 🇺🇸 Bethanie Mattek-Sands / 🇷🇺 Nadia Petrova (quarterfinals)