| Doubles | |
|---|---|
| 2011 Zucchetti Kos Tennis Cup | |
| Champions |  Julian Knowle  Michael Kohlmann |
| Runners-up |  Colin Ebelthite Adam Feeney |
| Final score | 2–6, 7–5, [10–5] |
Robin Haase and Rogier Wassen were the defending champions, but Haase decided not to participate.
Wassen played alongside Jesse Huta Galung. They were eliminated already in the first round.
Julian Knowle and Michael Kohlmann won the title, defeating Colin Ebelthite and Adam Feeney 2–6, 7–5, [10–5] in the final.
Julian Knowle / Michael Kohlmann (champions) Dustin Brown / 
Lovro Zovko (first round)
Johan Brunström / Andreas Siljeström (semifinals) Frank Moser / 
Ken Skupski (quarterfinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | J Knowle M Kohlmann | 6 | 6 | ||||||||||||||||||||||||
 O Charroin  P Raja | 3 | 4 | 1 | J Knowle M Kohlmann | w/o | ||||||||||||||||||||||
 J Huta Galung R Wassen | 4 | 2 |  I Minář D Škoch | ||||||||||||||||||||||||
| I Minář D Škoch | 6 | 6 | 1 | J Knowle M Kohlmann | 6 | 5 | [14] | ||||||||||||||||||||
| 4 | F Moser K Skupski | 6 | 6 | WC |  M Navarra  A Ungur | 3 | 7 | [12] | |||||||||||||||||||
| WC | J Hájek T Muster | 1 | 4 | 4 | F Moser K Skupski | 4 | 77 | [7] | |||||||||||||||||||
| WC | M Navarra A Ungur | 6 | 6 | WC | M Navarra A Ungur | 6 | 65 | [10] | |||||||||||||||||||
 U Ignatik  M Kližan | 2 | 4 | 1 | J Knowle M Kohlmann | 2 | 7 | [10] | ||||||||||||||||||||
| WC | Simone Appio Mauro Commisso | 4 | 5 | C Ebelthite A Feeney | 6 | 5 | [5] | ||||||||||||||||||||
 R Ramírez Hidalgo  Y Schukin | 6 | 7 | R Ramírez Hidalgo Y Schukin | 4 | 3 | ||||||||||||||||||||||
| J Delgado J Marray | 2 | 66 | 3 | J Brunström A Siljeström | 6 | 6 | |||||||||||||||||||||
| 3 | J Brunström A Siljeström | 6 | 78 | 3 | J Brunström A Siljeström | 5 | 2 | ||||||||||||||||||||
| C Ebelthite A Feeney | 6 | 6 | C Ebelthite A Feeney | 7 | 6 | ||||||||||||||||||||||
| A di Mauro A Motti | 3 | 2 | C Ebelthite A Feeney | 6 | 4 | [10] | |||||||||||||||||||||
| J Pospíšil I Zelenay | 6 | 78 | J Pospíšil I Zelenay | 3 | 6 | [6] | |||||||||||||||||||||
| 2 | D Brown L Zovko | 2 | 66 | ||||||||||||||||||||||||
Bob and Mike Bryan were the defending champions, but lost in the third round to Leoš Friedl and Mikhail Youzhny.
The 2007 US Open men's doubles tennis tournament was held from 27 August to 9 September 2007, at USTA Billie Jean King National Tennis Center at Flushing Meadows, New York City.
Mark Knowles and Daniel Nestor were the defending champions, but did not compete together. Knowles partnered with Mahesh Bhupathi, but lost in the first round to Stephen Huss and Ross Hutchins. Nestor partnered with Nenad Zimonjić, and reached the final before losing to Pablo Cuevas and Luis Horna.
Bob Bryan and Mike Bryan were the defending champions, but lost in the quarterfinals to Mahesh Bhupathi and Mark Knowles.
Mark Knowles and Daniel Nestor were the defending champions, but lost in the first round to Lukáš Dlouhý and David Škoch.
Simon Aspelin and Julian Knowle were the defending champions, but lost in the second round to Igor Kunitsyn and Dmitry Tursunov.
Enzo Artoni and Daniel Melo were the defending champions but only Melo competed that year with Ricardo Schlachter.
František Čermák and Leoš Friedl were the defending champions, but did not participate this year.
Wayne Black and Kevin Ullyett were the defending champions but did not compete that year.
Bob Bryan and Mike Bryan were the defending champions and won in the final 7–5, 6–3 against Jürgen Melzer and Alexander Popp.
Julian Knowle and Michael Kohlmann were the defending champions but lost in the final 7–5, 5–7, 6–2 against Tomáš Cibulec and Pavel Vízner.
Julian Knowle and Michael Kohlmann were the defending champions but lost in the quarterfinals to Mariusz Fyrstenberg and Marcin Matkowski.
Jürgen Melzer and Philipp Petzschner were the defending champions, but Melzer decided not to participate this year.
Petzschner played with Michael Kohlmann, but they lost to Lukáš Dlouhý and Radek Štěpánek already in the first round.
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Alessio di Mauro and Alessandro Motti were the defending champions, but Matteo Baldi and Paolo Lorenzi defeated them in the quarterfinals.
Mario Ančić and Julian Knowle were the defending champions. Ančić did not participate this year. Knowle partnered with Jürgen Melzer, losing in the first round.
Mark Knowles and Daniel Nestor were the defending champions, but lost in the first round this year.
David Škoch and Tomáš Zíb were the defending champions, but did not participate together this year. Skoch partnered Jordan Kerr, losing in the first round. Zib did not participate this year.
Daniele Bracciali and Santiago González were the defending champions but decided not to participate.
Paul Hanley and Jim Thomas were the defending champions, but Hanley did not participate this year. Thomas partnered Yves Allegro, losing in the quarterfinals.
Jaroslav Levinský and Michal Mertiňák were the defending champions, but did not participate together this year. Levinský partnered František Čermák, finishing runner-up. Mertiňák partnered Petr Pála, losing in the first round.