| 2013 HP Open | |
|---|---|
| Date | 7–13 October |
| Edition | 5th |
| Category | WTA International tournaments |
| Surface | Hard / outdoor |
| Location | Osaka, Japan |
| Venue | Utsubo Tennis Center |
| Champions | |
| Singles | |
 Samantha Stosur | |
| Doubles | |
 Kristina Mladenovic /  Flavia Pennetta | |
The 2013 HP Open was a women's tennis tournament played on outdoor hard courts sponsored by Hewlett-Packard. It was the fifth edition of the HP Open, and part of the WTA International tournaments of the 2013 WTA Tour. It was held at the Utsubo Tennis Center in Osaka, Japan, from October 7 through October 13, 2013.