2019 Rakuten Japan Open Tennis Championships – Doubles

Ben McLachlan and Jan-Lennard Struff were the defending champions, but chose not to participate together. McLachlan teamed up with Luke Bambridge, but lost in the first round to Divij Sharan and Artem Sitak. Struff played alongside Lucas Pouille, but lost in the semifinals to Nikola Mektić and Franko Škugor.

Nicolas Mahut and Édouard Roger-Vasselin won the title, defeating Mektić and Škugor in the final, 7–6(9–7), 6–4.

Seeds
• # 🇪🇸 Marcel Granollers / 🇦🇷 Horacio Zeballos (first round)

• # 🇫🇷 Nicolas Mahut / 🇫🇷 Édouard Roger-Vasselin (champions)

• # 🇺🇸 Rajeev Ram / 🇬🇧 Joe Salisbury (quarterfinals)

• # Mate Pavić / 🇧🇷 Bruno Soares (quarterfinals)

Seeds
• # 🇮🇳 Divij Sharan / 🇳🇿 Artem Sitak (qualified)

• # 🇲🇽 Santiago González / 🇵🇰 Aisam-ul-Haq Qureshi (qualifying competition)

Qualifiers

 * 1) 🇮🇳 Divij Sharan / 🇳🇿 Artem Sitak