2018 Toray Pan Pacific Open – Doubles

Andreja Klepač and María José Martínez Sánchez were the defending champions, but chose not to participate.

Miyu Kato and Makoto Ninomiya won the title, defeating Andrea Sestini Hlaváčková and Barbora Strýcová in the final, 6–4, 6–4.

Seeds
• # 🇨🇿 Andrea Sestini Hlaváčková / 🇨🇿 Barbora Strýcová (final)

• # 🇨🇦 Gabriela Dabrowski / 🇨🇳 Xu Yifan (semifinals)

• # Chan Hao-ching / 🇨🇳 Yang Zhaoxuan (first round)

• # 🇺🇸 Raquel Atawo / 🇩🇪 Anna-Lena Grönefeld (semifinals)