2016 Challenger Banque Nationale de Gatineau – Men's singles

This was the first edition of the men's singles tournament.

Peter Polansky won the title after Vincent Millot retired before the start of the third set in the final.

Seeds
• #🇫🇷 Quentin Halys (first round)

• #🇺🇸 Frances Tiafoe (withdrew)

• #🇮🇳 Saketh Myneni (quarterfinals)

• #🇨🇴 Alejandro González (first round)

• #🇫🇷 Vincent Millot (final, retired)

• # Franko Škugor (first round)

• #🇦🇺 Andrew Whittington (first round)

• #🇪🇪 Jürgen Zopp (first round)