2018 US Open – Boys' doubles

Hsu Yu-hsiou and Wu Yibing were the defending champions, but both players were no longer eligible to participate in junior tournaments.

Adrian Andreev and Anton Matusevich won the title, defeating Emilio Nava and Axel Nefve in the final, 6–4, 2–6, [10–8].

Seeds
• # 🇧🇷 Thiago Seyboth Wild / Tseng Chun-hsin (first round)

• # 🇦🇷 Sebastián Báez / 🇦🇷 Facundo Díaz Acosta (first round)

• # 🇫🇷 Hugo Gaston / 🇫🇷 Clément Tabur (second round)

• # 🇬🇧 Aidan McHugh / 🇰🇿 Timofei Skatov (first round)

• # 🇪🇸 Carlos López Montagud / 🇨🇳 Mu Tao (first round)

• # 🇺🇸 Tristan Boyer / 🇩🇴 Nick Hardt (second round)

• # 🇨🇿 Ondřej Štyler / 🇯🇵 Naoki Tajima (first round)

• # 🇷🇴 Filip Cristian Jianu / Deney Wassermann (quarterfinals)