2004 Pacific Life Open – Men's singles

Roger Federer defeated Tim Henman in the final, 6–3, 6–3, to win the men's singles tennis title at the 2004 Indian Wells Masters.

Lleyton Hewitt was the two-time defending champion, but lost in the third round to Juan Ignacio Chela.

Seeds
All thirty-three seeds received a bye to the second round. • # Roger Federer (champion)

• # 🇪🇸 Juan Carlos Ferrero (withdrew due to illness)

• # 🇺🇸 Andy Roddick (quarterfinals)

• # 🇦🇷 Guillermo Coria (quarterfinals)

• # 🇺🇸 Andre Agassi (semifinals)

• # 🇩🇪 Rainer Schüttler (second round)

• # 🇪🇸 Carlos Moyá (second round)

• # 🇦🇺 Lleyton Hewitt (third round)

• # 🇬🇧 Tim Henman (final)

• # 🇹🇭 Paradorn Srichaphan (second round)

• # Nicolás Massú (second round, retired)

• # 🇦🇺 Mark Philippoussis (second round)

• # 🇫🇷 Sébastien Grosjean (fourth round)

• # Sjeng Schalken (second round)

• # 🇧🇷 Gustavo Kuerten (second round)

• # 🇨🇿 Jiří Novák (third round)

• # Martin Verkerk (second round)

• # 🇺🇸 Mardy Fish (fourth round)

• # 🇪🇸 Tommy Robredo (second round)

• # 🇪🇸 Feliciano López (second round)

• # 🇺🇸 Vince Spadea (third round)

• # 🇦🇷 Agustín Calleri (fourth round)

• # 🇪🇸 Albert Costa (third round)

• # 🇫🇷 Arnaud Clément (second round)

• # Fernando González (third round)

• # 🇺🇸 Robby Ginepri (second round)

• # 🇧🇾 Max Mirnyi (third round)

• # 🇸🇪 Jonas Björkman (third round)

• # 🇫🇮 Jarkko Nieminen (second round)

• # 🇷🇺 Marat Safin (third round)

• # 🇸🇰 Dominik Hrbatý (third round)

• # 🇦🇷 Juan Ignacio Chela (quarterfinals)

• # 🇦🇷 Gastón Gaudio (third round)