The 2011 Challenger Banque Nationale de Rimouski was a professional tennis tournament played on indoor hard courts.

It was the 5th edition of the tournament and part of the 2011 ATP Challenger Tour, offering a total of $35,000 in prize money.

The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: Fritz Wolmarans def.

Bobby Reynolds, 6–7(2–7), 6–3, 7–6(7–3) Treat Conrad Huey / Vasek Pospisil def.

David Rice / Sean Thornley, 6–0, 6–1