Bob and Mike Bryan defeated Max Mirnyi and Andy Ram in the final, 7–6(7–5), 6–3 to win the doubles tennis title at the 2009 ATP World Tour Finals. It was their third Tour Finals title. Daniel Nestor and Nenad Zimonjić were the defending champions, but were eliminated in the round-robin stage.

Seeds

• # 🇨🇦 Daniel Nestor / 🇷🇸 Nenad Zimonjić (round robin) • # 🇺🇸 Bob Bryan / 🇺🇸 Mike Bryan (champions) • # 🇮🇳 Mahesh Bhupathi / Mark Knowles (semifinals) • # 🇨🇿 Lukáš Dlouhý / 🇮🇳 Leander Paes (round robin) • # 🇨🇿 František Čermák / 🇸🇰 Michal Mertiňák (semifinals) • # 🇵🇱 Łukasz Kubot / 🇦🇹 Oliver Marach (round robin) • # 🇧🇾 Max Mirnyi / 🇮🇱 Andy Ram (final) • # 🇵🇱 Mariusz Fyrstenberg / 🇵🇱 Marcin Matkowski (round robin)

Draw

Finals

Group A

''Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.''

Group B

''Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.''