2009 Western & Southern Financial Group Masters – Doubles

Bob Bryan and Mike Bryan were the defending champions, but lost in the final to Daniel Nestor and Nenad Zimonjić, 3–6, 7–6(7–2), [15–13].

Seeds
The top four seeds receive a bye into the second round. • # 🇺🇸 Bob Bryan / 🇺🇸 Mike Bryan (final)

• # 🇨🇦 Daniel Nestor / 🇷🇸 Nenad Zimonjić (champions)

• # 🇨🇿 Lukáš Dlouhý / 🇮🇳 Leander Paes (second round)

• # 🇮🇳 Mahesh Bhupathi / Mark Knowles (semifinals)

• # 🇧🇷 Bruno Soares / Kevin Ullyett (second round)

• # 🇵🇱 Mariusz Fyrstenberg / 🇵🇱 Marcin Matkowski (quarterfinals)

• # Wesley Moodie / 🇧🇪 Dick Norman (quarterfinals)

• # 🇵🇱 Łukasz Kubot / 🇦🇹 Oliver Marach (semifinals)