| 2017 Toray Pan Pacific Open | |
|---|---|
| Date | 18–24 September |
| Edition | 34th |
| Category | WTA Premier |
| Draw | 28S / 16D |
| Prize money | $1,000,000 |
| Surface | Hard / outdoor |
| Location | Tokyo, Japan |
| Venue | Ariake Forest Park |
| Attendance | 30,000 |
| Champions | |
| Singles | |
 Caroline Wozniacki | |
| Doubles | |
 Andreja Klepač /  María José Martínez Sánchez | |
The 2017 Toray Pan Pacific Open was a women's tennis tournament played on outdoor hard courts. It was the 34th edition of the Pan Pacific Open, and part of the Premier Series of the 2017 WTA Tour. It took place at the Ariake Coliseum in Tokyo, Japan, on 18–24 September 2017.