2011 Challenger Banque Nationale de Granby – Men's singles

Tobias Kamke was the defending champion but decided not to participate.

Édouard Roger-Vasselin won the title, defeating Matthias Bachinger 7–6(11–9), 4–6, 6–1 in the final.

Seeds
• # 🇮🇱 Dudi Sela (quarterfinals)

• # 🇩🇪 Matthias Bachinger (final)

• # 🇫🇷 Nicolas Mahut (quarterfinals)

• # 🇸🇰 Karol Beck (semifinals)

• # 🇯🇵 Tatsuma Ito (quarterfinals)

• # 🇫🇷 Édouard Roger-Vasselin (champion)

• # 🇫🇷 Arnaud Clément (semifinals)

• # 🇨🇦 Vasek Pospisil (quarterfinals, retired)