2004 Bausch & Lomb Championships – Singles

Elena Dementieva was the defending champion, but lost in second round to Jelena Kostanić.

Lindsay Davenport won the title by defeating Amélie Mauresmo 6–4, 6–4 in the final. It was the 2nd title in the year for Davenport and the 40th title of her career.

Seeds
The first eight seeds received a bye into the second round. • # 🇧🇪 Justine Henin-Hardenne (semifinals)

• # 🇺🇸 Serena Williams (quarterfinals)

• # 🇫🇷 Amélie Mauresmo (final)

• # 🇺🇸 Lindsay Davenport (champion)

• # 🇷🇺 Elena Dementieva (second round)

• # 🇯🇵 Ai Sugiyama (third round)

• # 🇷🇺 Nadia Petrova (semifinals)

• # 🇷🇺 Vera Zvonareva (quarterfinals)

• # 🇦🇷 Paola Suárez (quarterfinals)

• # 🇮🇹 Silvia Farina Elia (quarterfinals)

• # Jelena Dokic (first round)

• # Patty Schnyder (third round)

• # 🇮🇱 Anna Smashnova-Pistolesi (second round)

• # 🇮🇹 Francesca Schiavone (first round)

• # 🇧🇬 Magdalena Maleeva (second round)

• # 🇪🇸 Conchita Martínez (third round)