2017 Toray Pan Pacific Open – Singles

Caroline Wozniacki was the defending champion and successfully defended her title, defeating Anastasia Pavlyuchenkova in the final, 6–0, 7–5. This marked Wozniacki's first title of 2017 and snapped a six-match losing streak in tournament finals.

Seeds
• #🇪🇸 Garbiñe Muguruza (semifinals)

• #🇨🇿 Karolína Plíšková (quarterfinals)

• # Caroline Wozniacki (champion)

• #🇬🇧 Johanna Konta (second round)

• #🇸🇰 Dominika Cibulková (quarterfinals, retired)

• #🇵🇱 Agnieszka Radwańska (withdrew)

• #🇩🇪 Angelique Kerber (semifinals)

• #🇫🇷 Kristina Mladenovic (first round)

• #🇫🇷 Caroline Garcia (quarterfinals)

Seeds
• #🇵🇱 Magda Linette (qualified)

• #🇺🇸 Madison Brengle (qualified)

• #🇧🇾 Aliaksandra Sasnovich (qualifying competition, lucky loser)

• #🇸🇰 Jana Čepelová (qualified)

• #🇨🇳 Duan Yingying (qualifying competition)

• # Hsieh Su-wei (qualified)

• #🇰🇿 Zarina Diyas (withdrew, still competing in Tokyo International)

• #🇺🇦 Kateryna Bondarenko (qualifying competition)

Qualifiers
• #🇵🇱 Magda Linette

• #🇺🇸 Madison Brengle

• #🇸🇰 Jana Čepelová

• # Hsieh Su-wei

Lucky loser
• #🇧🇾 Aliaksandra Sasnovich