2009 HP Open

The 2009 HP Open (also known as the 2009 HP Japan Women's Open Tennis) was a women's tennis tournament played on outdoor hard courts. It was the 1st edition of the HP Open, and was classified as an WTA International tournaments of the 2009 WTA Tour. It was played in Osaka, Japan.

Singles
🇦🇺 Samantha Stosur defeated 🇮🇹 Francesca Schiavone 7–5, 6–1
 * It was Stosur's 1st title of the year and the 1st of her career.

Doubles
Chuang Chia-jung / 🇺🇸 Lisa Raymond defeated  Chanelle Scheepers / 🇺🇸 Abigail Spears 6–2, 6–4

Seeds
seeds are based on the rankings of October 5, 2009

Other entrants
The following players received wildcards into the singles main draw:
 * 🇯🇵 Kimiko Date-Krumm
 * 🇯🇵 Ryōko Fuda
 * 🇯🇵 Kurumi Nara

The following players received entry from the qualifying draw:
 * 🇷🇺 Anastasia Rodionova
 * Chang Kai-Chen
 * 🇦🇺 Sophie Ferguson
 * Chanelle Scheepers

The following player received a lucky loser spot:
 * 🇷🇺 Alexandra Panova