2009 Bank of the West Classic – Doubles

Cara Black and Liezel Huber were the defending champions, but lost in the quarterfinals to Yung-Jan Chan and Monica Niculescu.

Serena Williams and Venus Williams won in the final, 6–4, 6–1, against Yung-Jan Chan and Monica Niculescu.

Seeds

 * 1)  Cara Black / 🇺🇸 Liezel Huber (quarterfinals)
 * 2) 🇺🇸 Serena Williams / 🇺🇸 Venus Williams (champions)
 * 3) 🇺🇸 Bethanie Mattek-Sands / 🇷🇺 Nadia Petrova (semifinals)
 * 4) 🇷🇴 Sorana Cîrstea / 🇷🇺 Maria Kirilenko (semifinals)