# 2015 Western & Southern Open – Men's doubles

Bob and Mike Bryan were the two-time defending champions but lost in the quarterfinals to Daniel Nestor and Édouard Roger-Vasselin. Nestor and Roger-Vasselin went on to win the title, defeating Marcin Matkowski and Nenad Zimonjić in the final, 6–2, 6–2.

## Seeds

All seeds receive a bye into the second round.
* Bob Bryan / Mike Bryan (quarterfinals)
* Ivan Dodig / Marcelo Melo (semifinals)
* Jean-Julien Rojer / Horia Tecău (quarterfinals)
* Simone Bolelli / Fabio Fognini (second round)
* Rohan Bopanna / Florin Mergea (quarterfinals)
* Marcin Matkowski / Nenad Zimonjić (final)
* Jamie Murray / John Peers (second round)
* Vasek Pospisil / Jack Sock (second round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Daniel Nestor Édouard Roger-Vasselin | 7 | 6 | | | | |
| | Feliciano López Max Mirnyi | 5 | 4 | | | | |
| | Feliciano López Max Mirnyi | 5 | 4 | | Daniel Nestor Édouard Roger-Vasselin | 6 | 6 |
| | | | | 6 | Marcin Matkowski Nenad Zimonjić | 2 | 2 |
| 6 | Marcin Matkowski Nenad Zimonjić | 6 | 6 | 6 | Marcin Matkowski Nenad Zimonjić | 2 | 2 |
| 2 | Ivan Dodig Marcelo Melo | 4 | 4 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | B Bryan M Bryan | 7$^{11}$ | 6 | | | | | | | | | |
| | G Monfils J-W Tsonga | 3 | 2 | | | JS Cabal R Farah | 6$^9$ | 4 | | | | | | | | | |
| | JS Cabal R Farah | 6 | 6 | | | | | | | 1 | B Bryan M Bryan | 4 | 4 | | | | |
| | D Nestor É Roger-Vasselin | 3 | 7 | [11] | | | | | | | D Nestor É Roger-Vasselin | 6 | 6 | | | | |
| WC | E Butorac S Lipsky | 6 | 5 | [9] | | D Nestor É Roger-Vasselin | 7$^7$ | 7$^7$ | | | | | | | | | |
| | | | | | 7 | J Murray J Peers | 6$^3$ | 6$^5$ | | | | | | | | | |
| | | | | | | | | | | | | | | | D Nestor É Roger-Vasselin | 7 | 6 |
| | | | | | | | | | | | | | | | F López M Mirnyi | 5 | 4 |
| | | | | | 4 | S Bolelli F Fognini | 3 | 3 | | | | | | | | | |
| | P Cuevas D Marrero | 6$^2$ | 6 | [6] | | F López M Mirnyi | 6 | 6 | | | | | | | | | |
| | F López M Mirnyi | 7$^7$ | 3 | [10] | | | | | | | F López M Mirnyi | 3 | 6 | [14] | | | |
| | K Anderson J Chardy | 6 | 1 | [6] | | | | | | | L Paes S Wawrinka | 6 | 2 | [12] | | | |
| | L Paes S Wawrinka | 1 | 6 | [10] | | L Paes S Wawrinka | 7$^7$ | 3 | [10] | | | | | | | | |
| | | | | | 8 | V Pospisil J Sock | 6$^4$ | 6 | [3] | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 6 | M Matkowski N Zimonjić | 7$^7$ | 6 | | | | | | | | | | |
| PR | T Berdych M Fish | 6$^5$ | 4 | | | R Klaasen R Ram | 6$^4$ | 4 | | | | | | | | | | |
| | R Klaasen R Ram | 7$^7$ | 6 | | | | | | | 6 | M Matkowski N Zimonjić | 6 | 6 | | | | | |
| | A Peya B Soares | 6$^5$ | 7 | [10] | | | | | | 3 | J-J Rojer H Tecău | 3 | 4 | | | | | |
| | D Goffin D Thiem | 7$^7$ | 5 | [6] | | A Peya B Soares | 4 | 6 | [9] | | | | | | | | | |
| | | | | | 3 | J-J Rojer H Tecău | 6 | 3 | [11] | | | | | | | | | |
| | | | | | | | | | | | | | | | 6 | M Matkowski N Zimonjić | 6 | 6 |
| | | | | | | | | | | | | | | | 2 | I Dodig M Melo | 4 | 4 |
| | | | | | 5 | R Bopanna F Mergea | 1 | 7$^7$ | [13] | | | | | | | | | |
| | P-H Herbert N Mahut | 6 | 6 | | | P-H Herbert N Mahut | 6 | 6$^5$ | [11] | | | | | | | | | |
| | A Mannarino G Simon | 3 | 2 | | | | | | | 5 | R Bopanna F Mergea | 1 | 6 | [12] | | | | |
| WC | S Johnson S Querrey | 6 | 6 | | | | | | | 2 | I Dodig M Melo | 6 | 1 | [14] | | | | |
| | A Seppi V Troicki | 3 | 4 | | WC | S Johnson S Querrey | 6$^4$ | 6$^4$ | | | | | | | | | | |
| | | | | | 2 | I Dodig M Melo | 7$^7$ | 7$^7$ | | | | | | | | | | |