2007 AIG Japan Open Tennis Championships – Women's singles

Marion Bartoli was the defending champion, but chose not to participate that year.

Fifth-seeded Virginie Razzano won in the final 4–6, 7–6(9–7), 6–4, against first-seeded Venus Williams.

Seeds
• # 🇺🇸 Venus Williams (final)

• # 🇮🇳 Sania Mirza (quarterfinals)

• # 🇷🇺 Maria Kirilenko (first round)

• # 🇯🇵 Ai Sugiyama (first round)

• # 🇫🇷 Virginie Razzano (champion)

• # 🇯🇵 Akiko Morigami (first round)

• # 🇯🇵 Aiko Nakamura (first round)

• # 🇮🇹 Flavia Pennetta (semifinals)