Michaël Llodra and Fabrice Santoro defeated Leander Paes and Nenad Zimonjić in the final, 6–7(6–8), 6–3, 7–6(7–4) to win the doubles tennis title at the 2005 Tennis Masters Cup. Bob Bryan and Mike Bryan were the two-time defending champions, but were defeated in the semifinals by Llodra and Santoro.

Seeds

• # 🇺🇸 Bob Bryan / 🇺🇸 Mike Bryan (semifinals) • # 🇸🇪 Jonas Björkman / 🇧🇾 Max Mirnyi (round robin) • # Wayne Black / Kevin Ullyett (semifinals) • # Mark Knowles / 🇨🇦 Daniel Nestor (round robin) • # 🇮🇳 Leander Paes / Nenad Zimonjić (final) • # 🇫🇷 Michaël Llodra / 🇫🇷 Fabrice Santoro (champions) • # 🇦🇺 Wayne Arthurs / 🇦🇺 Paul Hanley (round robin) • # 🇦🇺 Stephen Huss / Wesley Moodie (round robin, retired)

Draw

Finals

Red group

''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.''

Gold group

''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.''