| 2011 HP Open | |
|---|---|
| Date | 10–16 October |
| Edition | 3rd |
| Category | WTA International tournaments |
| Surface | Hard / outdoor |
| Location | Osaka, Japan |
| Venue | Utsubo Tennis Center |
| Champions | |
| Singles | |
 Marion Bartoli | |
| Doubles | |
 Kimiko Date-Krumm /  Zhang Shuai | |
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The 2011 HP Open was a tennis tournament played on outdoor hard courts. It was the third edition of the HP Open, and part of the WTA International tournaments of the 2011 WTA Tour. It was held at the Utsubo Tennis Center in Osaka, Japan, from October 10 through October 16, 2011.