2004 Tennis Masters Cup – Doubles

Defending champions Bob Bryan and Mike Bryan successfully defended their title, defeating Wayne Black and Kevin Ullyett in the final, 4–6, 7–5, 6–4, 6–2 to win the doubles tennis title at the 2004 Tennis Masters Cup.

This was the last edition of the tournament to have a final played as best-of-five-sets.

Seeds
• # Mark Knowles / 🇨🇦 Daniel Nestor (semifinals)

• # 🇺🇸 Bob Bryan / 🇺🇸 Mike Bryan (champions)

• # 🇸🇪 Jonas Björkman / 🇦🇺 Todd Woodbridge (semifinals)

• # Wayne Black /  Kevin Ullyett (final)

• # 🇮🇳 Mahesh Bhupathi / 🇧🇾 Max Mirnyi (round robin)

• # 🇨🇿 Martin Damm / 🇨🇿 Cyril Suk (round robin)

• # 🇦🇷 Gastón Etlis / 🇦🇷 Martín Rodríguez (round robin)

• # 🇧🇪 Xavier Malisse / 🇧🇪 Olivier Rochus (round robin)

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.''

Blue 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.''