The 2013 Challenger Banque Nationale de Granby was a professional tennis tournament played on outdoor hard courts. It was the 20th edition, for men, and 3rd edition, for women, of the tournament and part of the 2013 ATP Challenger Tour and the 2013 ITF Women's Circuit, offering totals of $50,000, for men, and $25,000, for women, in prize money. It took place in Granby, Quebec, Canada between July 15 and July 21, 2013.
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw: