| 2015 Challenger Banque Nationale de Granby | |
|---|---|
| Date | July 20–26 |
| Edition | 22nd (men) 5th (women) |
| Category | ATP Challenger Tour ITF Women's Circuit |
| Prize money | US$100,000 (men) US$50,000 (women) |
| Surface | Hard – outdoors |
| Location | Granby, Quebec, Canada |
| Venue | Club de tennis des Loisirs de Granby |
| Champions | |
| Men's singles | |
 Vincent Millot | |
| Women's singles | |
 Johanna Konta | |
| Men's doubles | |
.svg.png.webp){kind=small} Philip Bester / Peter Polansky | |
| Women's doubles | |
.svg.png.webp){kind=small} Jessica Moore / Storm Sanders | |
The 2015 Challenger Banque Nationale de Granby was a professional tennis tournament played on outdoor hard courts. It was the 22nd edition, for men, and 5th edition, for women, of the tournament and part of the 2015 ATP Challenger Tour and the 2015 ITF Women's Circuit, offering totals of $100,000, for men, and $50,000, for women, in prize money. It took place in Granby, Quebec, Canada between July 20 and July 26, 2015.
Men's singles main-draw entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 GER |
Benjamin Becker | 54 | 1 |
 SVK |
Lukáš Lacko | 93 | 2 |
 JPN |
Go Soeda | 108 | 3 |
| JPN |
Yoshihito Nishioka | 143 | 4 |
| AUS |
|||
.svg.png.webp){kind=small} BEL |
Maxime Authom | 172 | 6 |
 ITA |
Matteo Donati | 183 | 7 |
 BAR |
Darian King | 196 | 8 |
- 1 Rankings are as of July 13, 2015
Other entrants
The following players received wildcards into the singles main draw:
- Isade Juneau
- Pavel Krainik
- Brayden Schnur
- Denis Shapovalov
The following player entered the singles main draw with a protected ranking:
Dennis Nevolo
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
- Jean-Yves Aubone
Women's singles main-draw entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| GBR |
Johanna Konta | 127 | 1 |
| JPN |
Naomi Osaka | 159 | 2 |
| FRA |
Stéphanie Foretz | 171 | 3 |
| FRA |
Julie Coin | 187 | 4 |
 MEX |
Marcela Zacarías | 214 | 5 |
| AUS |
Olivia Rogowska | 224 | 6 |
| GBR |
Naomi Broady | 225 | 7 |
| FRA |
Amandine Hesse | 229 | 8 |
- 1 Rankings are as of July 13, 2015
Other entrants
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
- Allie Halbauer
- Akari Inoue
- Maria Patrascu
- Katherine Sebov
Champions
Men's singles
- Vincent Millot def. Philip Bester, 6–4, 6–4
Women's singles
- Johanna Konta def. Stéphanie Foretz, 6–2, 6–4
Men's doubles
- Philip Bester / Peter Polansky def. Enzo Couacaud / Luke Saville, 6–7(5–7), 7–6(7–2), [10–7]
Women's doubles
- Jessica Moore / Storm Sanders def. Laura Robson / Erin Routliffe, 7–5, 6–2