2016 Japan Women's Open

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.

Prize money
1 Qualifiers prize money is also the Round of 32 prize money 2 Per team

Seeds

 * Rankings are as of August 29, 2016

Other entrants
The following players received wildcards into the singles main draw:
 * 🇯🇵 Misa Eguchi
 * 🇯🇵 Eri Hozumi
 * 🇯🇵 Risa Ozaki

The following players received entry from the qualifying draw:
 * 🇰🇷 Jang Su-jeong
 * 🇯🇵 Miyu Kato
 * 🇸🇪 Rebecca Peterson
 * 🇯🇵 Erika Sema

The following players received entry as a lucky loser:
 * 🇩🇪 Antonia Lottner

Withdrawals

 * Before the tournament
 * 🇯🇵 Misa Eguchi → replaced by 🇩🇪 Antonia Lottner
 * 🇺🇸 Irina Falconi → replaced by 🇯🇵 Kurumi Nara
 * 🇧🇪 Kirsten Flipkens → replaced by 🇸🇰 Jana Čepelová
 * 🇺🇸 Nicole Gibbs → replaced by 🇵🇱 Magda Linette
 * Hsieh Su-wei → replaced by 🇪🇪 Anett Kontaveit
 * 🇸🇰 Kristína Kučová → replaced by 🇯🇵 Naomi Osaka
 * Jeļena Ostapenko → replaced by 🇦🇹 Tamira Paszek
 * Anastasija Sevastova → replaced by 🇯🇵 Nao Hibino
 * 🇨🇳 Wang Qiang → replaced by Maria Sakkari

Seeds

 * 1 Rankings are as of August 29, 2016

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇸🇰 Daniela Hantuchová / 🇺🇸 Alison Riske
 * 🇯🇵 Kanae Hisami / 🇯🇵 Kotomi Takahata

Singles

 * 🇺🇸 Christina McHale def. 🇨🇿 Kateřina Siniaková, 3–6, 6–4, 6–4

Doubles

 * 🇯🇵 Shuko Aoyama / 🇯🇵 Makoto Ninomiya def. 🇬🇧 Jocelyn Rae / 🇬🇧 Anna Smith, 6–3, 6–3