2017 Challenger Banque Nationale de Granby – Women's singles

Jennifer Brady was the defending champion, but she chose to compete in Sacramento instead.

Cristiana Ferrando won the title, defeating Katherine Sebov in the final, 6–2, 6–3.

Seeds
• # 🇨🇦 Bianca Andreescu (second round)

• # 🇨🇿 Marie Bouzková (semifinals, retired)

• # 🇫🇷 Chloé Paquet (second round)

• # 🇦🇺 Olivia Rogowska (second round)

• # 🇭🇺 Fanny Stollár (first round)

• # 🇮🇱 Deniz Khazaniuk (first round)

• # 🇬🇧 Katie Boulter (quarterfinals)

• # 🇯🇵 Mayo Hibi (quarterfinals)