2026 Japan Open Tennis Championships – Doubles

Common card · No. 241077

Austin Krajicek and Nikola Mektić defeated Théo Arribagé and Albano Olivetti in the final, 7–6(7–5), 5–7, [10–6] to win the doubles tennis title at the 2026 Japan Open Tennis Championships. Hugo Nys and Édouard Roger-Vasselin were the defending champions, but lost in the quarterfinals to Rinky Hijikata and Kaito Uesugi.