| Doubles | |
|---|---|
| 2009 Barcelona Open Banco Sabadell | |
| Champions |  Daniel Nestor  Nenad Zimonjić |
| Runners-up |  Mahesh Bhupathi  Mark Knowles |
| Final score | 6–3, 7–6(11–9) |
Bob Bryan and Mike Bryan were the defending champions, but lost in the semifinals to Mahesh Bhupathi and Mark Knowles.
Daniel Nestor and Nenad Zimonjić won in the final 6–3, 7–6(11–9), against Mahesh Bhupathi and Mark Knowles.
All seeds receive a bye into the second round.
Bob Bryan / Mike Bryan (semifinals) Daniel Nestor / Nenad Zimonjić (champions)
Lukáš Dlouhý / Leander Paes (second round) Mahesh Bhupathi / Mark Knowles (final)
Bruno Soares / 
Kevin Ullyett (quarterfinals)
Mariusz Fyrstenberg / Marcin Matkowski (second round)
Jeff Coetzee / 
Jordan Kerr (second round) Marcelo Melo / André Sá (second round)| Semifinals | Final | ||||||||||||
| 1 | Bob Bryan Mike Bryan | 2 | 7 | [7] | |||||||||
| 4 | Mahesh Bhupathi Mark Knowles | 6 | 65 | [10] | |||||||||
| 4 | Mahesh Bhupathi Mark Knowles | 3 | 69 | ||||||||||
| 2 | Daniel Nestor Nenad Zimonjić | 6 | 7 | ||||||||||
 Simon Aspelin Wesley Moodie | 61 | 68 | |||||||||||
| 2 | Daniel Nestor Nenad Zimonjić | 7 | 7 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | B Bryan M Bryan | 6 | 6 | ||||||||||||||||||||||||
T Parrott  F Polášek | 64 | 6 | [10] | T Parrott F Polášek | 3 | 4 | |||||||||||||||||||||
| F Čermák M Mertiňák | 7 | 2 | [7] | 1 | B Bryan M Bryan | 6 | 6 | ||||||||||||||||||||
 M Granollers T Robredo | 3 | 6 | [8] | L Kubot  O Marach | 1 | 2 | |||||||||||||||||||||
| L Kubot O Marach | 6 | 3 | [10] | L Kubot O Marach | 7 | 6 | |||||||||||||||||||||
| 8 | M Melo A Sá | 5 | 4 | ||||||||||||||||||||||||
| 1 | B Bryan M Bryan | 2 | 7 | [7] | |||||||||||||||||||||||
| 4 | M Bhupathi M Knowles | 6 | 65 | [10] | |||||||||||||||||||||||
| 4 | M Bhupathi M Knowles | 4 | 6 | [10] | |||||||||||||||||||||||
| F López F Verdasco | 7 | 2 | [7] | R Lindstedt R Söderling | 6 | 1 | [8] | ||||||||||||||||||||
| R Lindstedt R Söderling | 64 | 6 | [10] | 4 | M Bhupathi M Knowles | 7 | 6 | ||||||||||||||||||||
| N Almagro A Montañés | 3 | 3 |  L Arnold Ker  F González | 5 | 2 | ||||||||||||||||||||||
| L Arnold Ker F González | 6 | 6 | L Arnold Ker F González | 6 | 6 | ||||||||||||||||||||||
| 6 | M Fyrstenberg M Matkowski | 2 | 3 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | J Coetzee J Kerr | 4 | 1 | ||||||||||||||||||||||||
 M Safin D Vemić | 3 | 6 | [6] | R Štěpánek V Troicki | 6 | 6 | |||||||||||||||||||||
| R Štěpánek V Troicki | 6 | 3 | [10] | R Štěpánek V Troicki | 4 | 3 | |||||||||||||||||||||
| S Aspelin W Moodie | 7 | 2 | [12] | S Aspelin W Moodie | 6 | 6 | |||||||||||||||||||||
| WC | M López F Vicente | 60 | 6 | [10] | S Aspelin W Moodie | 7 | 7 | ||||||||||||||||||||
| 3 | L Dlouhý L Paes | 65 | 63 | ||||||||||||||||||||||||
| S Aspelin W Moodie | 61 | 68 | |||||||||||||||||||||||||
| 2 | D Nestor N Zimonjić | 7 | 7 | ||||||||||||||||||||||||
| 5 | B Soares K Ullyett | 6 | 6 | ||||||||||||||||||||||||
S Huss  R Hutchins | 6 | 5 | [8] | WC | G Alcaide A Martín | 3 | 2 | ||||||||||||||||||||
| WC | G Alcaide A Martín | 3 | 7 | [10] | 5 | B Soares K Ullyett | 6 | 3 | [7] | ||||||||||||||||||
| J Knowle J Melzer | 3 | 6 | [10] | 2 | D Nestor N Zimonjić | 1 | 6 | [10] | |||||||||||||||||||
| N Davydenko I Kunitsyn | 6 | 4 | [6] | J Knowle J Melzer | 63 | 1 | |||||||||||||||||||||
| 2 | D Nestor N Zimonjić | 7 | 6 | ||||||||||||||||||||||||
Bob Bryan and Mike Bryan were the defending champions, and won in the final 6–2, 6–2, against Mahesh Bhupathi and Mark Knowles.
Bob Bryan and Mike Bryan were the defending champions, but lost in the quarterfinals to Jeff Coetzee and Wesley Moodie.
Fabrice Santoro and Nenad Zimonjić were the defending champions. They were both present but did not compete together.
Santoro partnered with Richard Gasquet, but lost in the semifinals to Zimonjic and partner Daniel Nestor, who lost in the final.
Mark Knowles and Daniel Nestor were the defending champions, but Knowles chose not to participate, and only Nestor competed that year.
Nestor partnered with Nenad Zimonjić, and won in the final 6–4, 7–6(7–3), against Marcelo Melo and André Sá.
Mahesh Bhupathi and Pavel Vízner were the defending champions. They were both present but did not compete together.
Bhupathi partnered with Mark Knowles, but lost in the quarterfinals to Lukáš Dlouhý and Leander Paes
Vízner partnered with Martin Damm, but lost in the second round to Mario Ančić and Jeff Coetzee.
Bob Bryan and Mike Bryan were the defending champions, but lost in the quarterfinals to Jonas Björkman and Kevin Ullyett.
Mark Knowles and Daniel Nestor were the defending champions. They were both present but did not compete together.
Knowles partnered with Mahesh Bhupathi, but lost in the round robin.
Nestor partnered with Nenad Zimonjić, and won in the final 7–6(7–3), 6–2, against Bob Bryan and Mike Bryan.
Rafael Nadal and Tommy Robredo were the defending champions, but Nadal chose not to participate, and only Robredo competed this year.
Robredo partnered with Albert Montañés, but lost in the second round to Lukáš Dlouhý and Leander Paes.
Daniel Nestor and Nenad Zimonjić won in the final 6–4, 6–1, against Bob Bryan and Mike Bryan.
The 2009 Italian Open – Men's doubles was a tennis tournament played on outdoor clay courts.
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].
Daniel Nestor and Nenad Zimonjić were the defending champions, but lost in the semifinals to Mahesh Bhupathi and Mark Knowles.
Bob Bryan and Mike Bryan were the defending champions, but lost in the semifinals against Lukáš Dlouhý and Leander Paes.
Daniel Nestor and Nenad Zimonjić were the defending champions and won in the final after the retirement of Mahesh Bhupathi and Max Mirnyi.
Daniel Nestor and Nenad Zimonjić defend their 2009 title. They defeated Lleyton Hewitt and Mark Knowles in the final.
Daniel Nestor and Nenad Zimonjić were the defending champions, but lost in the second round to Pablo Cuevas and Juan Mónaco.
Bob Bryan and Mike Bryan defeated their compatriots John Isner and Sam Querrey in the final. They won 6–2, 6–3.
Daniel Nestor and Nenad Zimonjić were the defending champions, but they lost to František Čermák and Michal Mertiňák 7–5, 6–2 in the first round.
Bob Bryan and Mike Bryan won in the final against Mahesh Bhupathi and Max Mirnyi, 6–3, 6–4.
Daniel Nestor and Nenad Zimonjić were the defending champions, but lost to Mahesh Bhupathi and Max Mirnyi in the quarterfinals.
Bhupathi and Mirnyi won this tournament, by defeating Mark Knowles and Andy Ram 7–5, 7–5 in the final.
Michaël Llodra and Fabrice Santoro were the defending champions, but had different outcomes. While Llodra did not compete this year, Santoro partnered with Nenad Zimonjić and reached the Quarterfinals, before losing to Jonas Björkman and Max Mirnyi.
Mark Knowles and Daniel Nestor were the defending champions, but lost in semifinals to Jonas Björkman and Max Mirnyi.
Mahesh Bhupathi and Max Mirnyi were the defending champions, but played this tournament with different partners. Bhupathi teamed up with Todd Woodbridge while Mirnyi teamed up with Jonas Björkman. Both pairs were eliminated in semifinals.