The 2009 Toray Pan Pacific Open was a women's tennis tournament played on outdoor hard courts. It was the 26th edition of the Toray Pan Pacific Open, and was part of the Premier Series of the 2009 WTA Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from September 27 through October 2, 2009. Maria Sharapova won the singles title.

Champions

Singles

🇷🇺 Maria Sharapova defeated 🇷🇸 Jelena Janković, 5–2 (ret)

Doubles

🇷🇺 Alisa Kleybanova / 🇮🇹 Francesca Schiavone defeated 🇸🇰 Daniela Hantuchová / 🇯🇵 Ai Sugiyama, 6–4, 6–2

WTA entrants

Seeds

Other entrants

The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: