| Date: | July 11–16 |
| Edition: | 2nd (men) 5th (women) |
| Category: | ATP Challenger Tour ITF Women's Circuit |
| Prize Money: | (men) (women) |
| Surface: | Hard – outdoors |
| Location: | Winnipeg, Manitoba, Canada |
| Venue: | Winnipeg Lawn Tennis Club |
| Champms: | Blaž Kavčič |
| Champws: |  Caroline Dolehide |
| Champmd: |  Luke Bambridge /  David O'Hare |
| Champwd: |  Hiroko Kuwata /  Valeria Savinykh |
| Main Name: | Winnipeg Challenger |
The 2017 Winnipeg National Bank Challenger was a professional tennis tournament played on outdoor hard courts. It was the 2nd edition, for men, and 5th edition, for women, of the tournament and 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 Winnipeg, Manitoba, Canada between July 11 and July 16, 2017.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Blaž Kavčič | 110 | 1 | ||
 Canada | Peter Polansky | 127 | 2 | |
| Japan | Tatsuma Ito | 181 | 3 | |
| Japan | Yasutaka Uchiyama | 186 | 4 | |
| Japan | Hiroki Moriya | 187 | 5 | |
| Canada | Steven Diez | 225 | 6 | |
| Canada | Brayden Schnur | 233 | 7 | |
| Blaž Rola | 245 | 8 |
The following players received wildcards into the singles main draw:
Hugo Di Feo Jack Mingjie Lin Samuel Monette Nicaise MuambaThe following players received entry from the qualifying draw:
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Nicole Gibbs | 117 | 1 | ||
| Danielle Collins | 164 | 2 | ||
| Danielle Lao | 241 | 3 | ||
| Caroline Dolehide | 246 | 4 | ||
| Japan | Mayo Hibi | 250 | 5 | |
| Japan | Hiroko Kuwata | 256 | 6 | |
| Michelle Larcher de Brito | 283 | 7 | ||
| Francesca Di Lorenzo | 289 | 8 |
The following players received wildcards into the singles main draw:
Isabelle Boulais Petra Januskova Catherine Leduc Charlotte Robillard-MilletteThe following player entered the singles main draw with a protected ranking:
The following players received entry from the qualifying draw:
Helen Abigail Altick Sara Daavettila Jessica Failla Leylah Annie Fernandez Nika Kukharchuk Alexandra Mueller Shelby Talcott
Marcela ZacaríasSee main article: article and 2017 Winnipeg National Bank Challenger – Men's singles.
Peter Polansky, 7–5, 3–6, 7–5See main article: article and 2017 Winnipeg National Bank Challenger – Women's singles.
Caroline Dolehide def. Mayo Hibi, 6–3, 6–4 Luke Bambridge / David O'Hare def. Yusuke Takahashi / Renta Tokuda, 6–2, 6–2See main article: article and 2017 Winnipeg National Bank Challenger – Women's doubles.
Hiroko Kuwata / Valeria Savinykh def. 
Kimberly Birrell / Caroline Dolehide, 6–4, 7–6(7–4)