2018_Challenger_Banque_Nationale_de_Gatineau_–_Men's_singles
2018 Challenger Banque Nationale de Gatineau – Men's singles
2018 tennis event results
Denis Shapovalov was the defending champion but chose not to defend his title.
Bradley Klahn won the title after defeating Ugo Humbert 6–3, 7–6(7–5) in the final.