2019 Keio Challenger – Men's doubles

Tobias Kamke and Tim Pütz were the defending champions but chose not to defend their title.

Moez Echargui and Skander Mansouri won the title after defeating Max Purcell and Luke Saville 7–6(8–6), 6–7(3–7), [10–7].

Seeds
• # 🇦🇺 Max Purcell / 🇦🇺 Luke Saville (final)

• # 🇹🇭 Sanchai Ratiwatana / 🇹🇭 Sonchat Ratiwatana (semifinals)

• # Ruben Gonzales / 🇺🇸 Alex Lawson (first round)

• # 🇷🇺 Ivan Gakhov / 🇷🇺 Alexander Pavlioutchenkov (quarterfinals)