2013 Challenger Banque Nationale de Granby – Women's singles

Eugenie Bouchard was the defending champion, having won the event in 2012, but she chose not to defend her title.

Risa Ozaki won the tournament, defeating Samantha Murray in the final, 0–6, 7–5, 6–2.

Seeds
• # 🇦🇺 Olivia Rogowska (quarterfinals)

• # 🇫🇷 Julie Coin (semifinals)

• # 🇬🇧 Samantha Murray (final)

• # 🇯🇵 Risa Ozaki (champion)

• # 🇯🇵 Misa Eguchi (first round)

• # 🇯🇵 Eri Hozumi (semifinals)

• # 🇬🇧 Naomi Broady (second round)

• # 🇯🇵 Mai Minokoshi (first round)