2004 Guangzhou International Women's Open – Singles

This was the first edition of the event.

Li Na won her maiden WTA singles title, defeating Martina Suchá in the final, 6–3, 6–4. Li also became the first Chinese player to win a WTA singles title.

Seeds
• #🇦🇷 Gisela Dulko (second round)

• # Jelena Janković (second round)

• #🇮🇹 Flavia Pennetta (second round, retired due to a left wrist sprain)

• #🇫🇷 Marion Bartoli (second round)

• #🇻🇪 María Vento-Kabchi (first round)

• # Kristina Brandi (quarterfinals)

• #🇦🇺 Nicole Pratt (second round)

• #🇨🇿 Klára Koukalová (second round)

Seeds
• # 🇨🇳 Sun Tiantian (moved to the main draw)

• # 🇯🇵 Aiko Nakamura (qualifying competition)

• # Natalie Grandin (Advanced to the main draw)

• # 🇨🇳 Liu Nannan (Advanced to the main draw)

• # 🇹🇭 Suchanun Viratprasert (qualifying competition)

• # 🇨🇳 Li Na (Advanced to the main draw)

• # 🇨🇳 Xie Yan-ze (first round)

• # 🇩🇪 Antonia Matic (second round)

• # 🇷🇺 Nina Bratchikova (Advanced to the main draw)

Qualifiers
• # 🇷🇺 Nina Bratchikova

• # 🇨🇳 Li Na

• # Natalie Grandin

• # 🇨🇳 Liu Nannan