| Date: | July 11 – July 17 |
| Edition: | 18th (men) 1st (women) |
| Category: | ATP Challenger Tour ITF Women's Circuit |
| Prize Money: | (men) (women) |
| Surface: | Hard – outdoors |
| Location: | Granby, Quebec, Canada |
| Venue: | Club de tennis des Loisirs de Granby |
| Champms: |  Édouard Roger-Vasselin |
| Champmd: |  Karol Beck / Édouard Roger-Vasselin |
| Champws: |  Stéphanie Dubois |
| Champwd: | Sharon Fichman /  Sun Shengnan |
| Main Name: | Challenger de Granby |
The 2011 Challenger Banque Nationale de Granby was a professional tennis tournament played on outdoor hard courts. It was the 18th edition, for men, and 1st edition, for women, of the tournament and part of the 2011 ATP Challenger Tour and the 2011 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 11 and July 17, 2011.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Israel | Dudi Sela | 82 | 1 | |
| Matthias Bachinger | 92 | 2 | ||
| France | Nicolas Mahut | 95 | 3 | |
| Slovakia | Karol Beck | 102 | 4 | |
 Japan | Tatsuma Ito | 111 | 5 | |
| France | Édouard Roger-Vasselin | 136 | 6 | |
| France | Arnaud Clément | 169 | 7 | |
| Canada | Vasek Pospisil | 191 | 8 |
The following players received wildcards into the singles main draw:
Steven Diez Kamil Pajkowski Milan Pokrajac Zachary WhiteThe following player received entry as an alternate:
Antoine BenneteauThe following players received entry from the qualifying draw:
Sekou Bangoura Jean-François Bérard Filip Peliwo Yoann RéSee main article: 2011 Challenger Banque Nationale de Granby – Men's singles. Édouard Roger-Vasselin def. Matthias Bachinger, 7–6(11–9), 4–6, 6–1
See main article: 2011 Challenger Banque Nationale de Granby – Women's singles. Stéphanie Dubois def. 
Zhang Ling, 6–2, 2–6, 6–1
See main article: 2011 Challenger Banque Nationale de Granby – Men's doubles. Karol Beck / Édouard Roger-Vasselin def. Matthias Bachinger / Frank Moser, 6–1, 6–3
See main article: 2011 Challenger Banque Nationale de Granby – Women's doubles. Sharon Fichman / Sun Shengnan def. 
Viktoryia Kisialeva / 
Nathalia Rossi, 6–4, 6–2