2017 Keio Challenger – Men's doubles

Sanchai and Sonchat Ratiwatana were the defending champions but only Sanchai Ratiwatana chose to defend his title, partnering Peng Hsien-yin. Ratiwatana lost in the first round to Masahiro Fukuda and Masamichi Imamura.

Marin and Tomislav Draganja won the title after defeating Joris De Loore and Luke Saville 4–6, 6–3, [10–4] in the final.

Seeds
• # 🇨🇳 Gong Maoxin / 🇨🇳 Zhang Ze (semifinals)

• # Peng Hsien-yin / 🇹🇭 Sanchai Ratiwatana (first round)

• # 🇦🇺 Alex Bolt / 🇦🇺 Andrew Whittington (quarterfinals)

• # 🇨🇳 Wu Di / Yi Chu-huan (first round)