| Doubles | |
|---|---|
| 2009 Western & Southern Financial Group Masters | |
| Champions |
|
| Runners-up |
|
| Final score | 3–6, 7–6(7–2), [15–13] |
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].
The top four seeds receive a bye into the second round.