2010 HP Open
Date	11–17 October
Edition	2nd
Category	WTA International tournaments
Surface	Hard / outdoor
Location	Osaka, Japan
Champions
Singles
Tamarine Tanasugarn
Doubles
Chang Kai-chen / Lilia Osterloh
← 2009 · Japan Women's Open · 2011 →

The 2010 HP Open (also known as the 2010 HP Japan Women's Open Tennis) was a women's tennis tournament played on outdoor hard courts. It was the 2nd edition of the HP Open, and was classified as one of the WTA International tournaments of the 2010 WTA Tour. It was played in Osaka, Japan from October 11 to October 17.

WTA players

Seeds

Country	Player	Rank1	Seed
AUS	Samantha Stosur	8	1
FRA	Marion Bartoli	14	2
ISR	Shahar Pe'er	18	3
RUS	Maria Kirilenko	26	4
RUS	Alla Kudryavtseva	56	5
JPN	Kimiko Date-Krumm	57	6
CZE	Iveta Benešová	70	7
HUN	Gréta Arn	88	8

• Seeds are based on the rankings of October 4, 2010.

Other entrants

The following players received wildcards into the singles main draw:

• Ryōko Fuda
• Sachie Ishizu
• Aiko Nakamura

The following players received entry from the qualifying draw:

• Natalie Grandin
• Christina McHale
• Laura Robson
• Tomoko Yonemura

Champions

Singles

Tamarine Tanasugarn def. Kimiko Date-Krumm, 7–5, 6–7(4), 6–1

• It was Tanasugarn's 1st title of the year, and her 4th overall.
• It was the oldest known final ever, at a combined age of 73.^[1]

Doubles

Chang Kai-chen / Lilia Osterloh def. Shuko Aoyama / Rika Fujiwara, 6–0, 6–3