| 2012 HP Open | |
|---|---|
| Date | 8–14 October |
| Edition | 4th
 |
| Category | WTA International tournaments |
| Surface | Hard / outdoor |
| Location | Osaka, Japan |
| Venue | Utsubo Tennis Center |
| Champions | |
| Singles | |
 Heather Watson | |
| Doubles | |
 Raquel Kops-Jones / Abigail Spears | |
The 2012 HP Open was a women's tennis tournament played on outdoor hard courts sponsored by Hewlett-Packard. It was the fourth edition of the HP Open, and part of the WTA International tournaments of the 2012 WTA Tour. It was held at the Utsubo Tennis Center in Osaka, Japan, from October 8 through October 14, 2012. Heather Watson won the singles title.