The 2010 Challenger Banque Nationale de Granby was a professional tennis tournament played on outdoor hard courts. It was the 17th edition of the tournament and part of the 2010 ATP Challenger Tour, offering totals of $50,000 in prize money. It took place in Granby, Quebec, Canada between July 26 and August 1, 2010.

Singles main-draw entrants

Seeds

Other entrants

The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw:

Champions

Singles

🇩🇪 Tobias Kamke def. 🇨🇦 Milos Raonic, 6–3, 7–6(7–4)

Doubles

Frederik Nielsen / 🇦🇺 Joseph Sirianni def. 🇹🇭 Sanchai Ratiwatana / 🇹🇭 Sonchat Ratiwatana, 4–6, 6–4, [10–6]