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| 2016 Japan Women's Open | |
|---|---|
| Date | September 12–18 |
| Edition | 8th |
| Category | WTA International |
| Draw | 32S / 16D |
| Prize money | $250,000 |
| Surface | Hard |
| Location | Tokyo, Japan |
| Venue | Ariake Coliseum |
| Champions | |
| Singles | |
 Christina McHale | |
| Doubles | |
 Shuko Aoyama / Makoto Ninomiya | |
The 2016 Japan Women's Open (also known as the 2016 Hashimoto Sogyo Japan Women's Open for sponsorship reasons) was a women's tennis tournament played on outdoor hard courts. It was the eighth edition of the Japan Women's Open, and part of the WTA International tournaments of the 2016 WTA Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from September 12 through September 18, 2016.