2015 Challenger Banque Nationale de Granby – Women's singles

Miharu Imanishi was the defending champion, but decided not to participate this year.

Johanna Konta won the title, defeating Stéphanie Foretz 6–2, 6–4 in the final.

Seeds
• #🇬🇧 Johanna Konta (champion)

• #🇯🇵 Naomi Osaka (first round)

• #🇫🇷 Stéphanie Foretz (final)

• #🇫🇷 Julie Coin (quarterfinals)

• #🇲🇽 Marcela Zacarías (first round)

• #🇦🇺 Olivia Rogowska (second round)

• #🇬🇧 Naomi Broady (quarterfinals)

• #🇫🇷 Amandine Hesse (second round)