2018 Challenger Banque Nationale de Granby – Men's doubles

Joe Salisbury and Jackson Withrow were the defending champions but chose not to defend their title.

Alex Lawson and Li Zhe won the title after defeating JC Aragone and Liam Broady 7–6(7–2), 6–3 in the final.

Seeds
• # 🇦🇺 Matt Reid / 🇯🇵 Yasutaka Uchiyama (semifinals)

• # 🇦🇺 Bradley Mousley / 🇦🇹 Maximilian Neuchrist (first round)

• # 🇺🇸 Alex Lawson / 🇨🇳 Li Zhe (champions)

• # 🇺🇸 JC Aragone / 🇬🇧 Liam Broady (final)