2017 Challenger Banque Nationale de Gatineau

The 2017 Challenger Banque Nationale de Gatineau was a professional tennis tournament played on outdoor hard courts. It was the 2nd edition of the tournament for men and the 4th for women, and it was part of the 2017 ATP Challenger Tour and the 2017 ITF Women's Circuit, offering totals of $75,000 for men and $25,000 for women in prize money. It took place in Gatineau, Canada between July 17 and 23, 2017.

Seeds

 * 1 Rankings are as of July 3, 2017

Other entrants
The following players received wildcards into the singles main draw:
 * 🇨🇦 Philip Bester
 * 🇬🇧 Liam Broady
 * 🇨🇦 Filip Peliwo
 * 🇨🇦 Benjamin Sigouin

The following player received entry into the singles main draw using a protected ranking:
 * 🇺🇸 Bradley Klahn

The following players received entry into the singles main draw as alternates:
 * 🇺🇸 Daniel Nguyen
 * 🇦🇺 Max Purcell

The following players received entry from the qualifying draw:
 * 🇺🇸 JC Aragone
 * 🇺🇸 Sekou Bangoura
 * 🇺🇸 Marcos Giron
 * Mikael Torpegaard

Seeds

 * 1 Rankings are as of July 3, 2017

Other entrants
The following players received wildcards into the singles main draw:
 * 🇨🇦 Carson Branstine
 * 🇨🇦 Anca Craciun
 * 🇨🇦 Leylah Annie Fernandez
 * 🇨🇦 Layne Sleeth

The following player entered the singles main draw with a protected ranking:
 * 🇦🇺 Kimberly Birrell

The following players received entry from the qualifying draw:
 * 🇷🇺 Elena Bovina
 * Alexa Guarachi
 * 🇷🇺 Nika Kukharchuk
 * 🇬🇧 Samantha Murray
 * 🇦🇺 Ellen Perez
 * 🇬🇧 Emily Webley-Smith
 * 🇲🇽 Marcela Zacarías
 * 🇺🇸 Amy Zhu

Men's singles

 * 🇨🇦 Denis Shapovalov def. 🇨🇦 Peter Polansky, 6–1, 3–6, 6–3

Women's singles

 * 🇨🇦 Aleksandra Wozniak def. 🇦🇺 Ellen Perez, 7–6(7–4), 6–4

Men's doubles

 * 🇺🇸 Bradley Klahn / 🇺🇸 Jackson Withrow def. 🇲🇽 Hans Hach Verdugo / 🇫🇷 Vincent Millot, 6–2, 6–3

Women's doubles

 * 🇯🇵 Hiroko Kuwata / 🇷🇺 Valeria Savinykh def. 🇦🇺 Kimberly Birrell / 🇬🇧 Emily Webley-Smith, 4–6, 6–3, [10–5]