| 2011 Challenger Banque Nationale de Granby | |
|---|---|
| Date | July 11 – July 17 | 
| Edition | 18th (men)  1st (women)  | 
| Category | ATP Challenger Tour  ITF Women's Circuit  | 
| Prize money | US$50,000+H (men)  US$25,000 (women)  | 
| Surface | Hard – outdoors | 
| Location | Granby, Quebec, Canada | 
| Venue | Club de tennis des Loisirs de Granby | 
| Champions | |
| Men's singles | |
| Women's singles | |
| Men's doubles | |
| Women's doubles | |
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.
Men's singles main-draw entrants
Seeds
| Country | Player | Rank1 | Seed | 
|---|---|---|---|
| Dudi Sela | 82 | 1 | |
| Matthias Bachinger | 92 | 2 | |
| Nicolas Mahut | 95 | 3 | |
| Karol Beck | 102 | 4 | |
| Tatsuma Ito | 111 | 5 | |
| Édouard Roger-Vasselin | 136 | 6 | |
| Arnaud Clément | 169 | 7 | |
| Vasek Pospisil | 191 | 8 | 
- 1 Rankings are as of July 4, 2011
 
Other entrants
The following players received wildcards into the singles main draw:
 Steven Diez
 Kamil Pajkowski
 Milan Pokrajac
 Zachary White
The following player received entry as an alternate:
 Antoine Benneteau
The following players received entry from the qualifying draw:
 Sekou Bangoura
 Jean-François Bérard
 Filip Peliwo
 Yoann Ré
Champions
Men's singles
 Édouard Roger-Vasselin def. 
 Matthias Bachinger, 7–6(11–9), 4–6, 6–1
Women's singles
 Stéphanie Dubois def. 
 Zhang Ling, 6–2, 2–6, 6–1
Men's doubles
 Karol Beck / 
 Édouard Roger-Vasselin def. 
 Matthias Bachinger / 
 Frank Moser, 6–1, 6–3
Women's doubles
 Sharon Fichman / 
 Sun Shengnan def. 
 Viktoryia Kisialeva / 
 Nathalia Rossi, 6–4, 6–2