| Date: | October 23–29 |
| Edition: | 12th |
| Category: | ITF Women's Circuit |
| Surface: | Hard – indoors |
| Location: | Saguenay, Quebec, Canada |
| Venue: | Club de tennis intérieur Saguenay |
| Champs: |  Gréta Arn |
| Champd: |  Bianca Andreescu / Carol Zhao |
| Main Name: | Challenger de Saguenay |
The 2017 Challenger Banque Nationale de Saguenay was a professional tennis tournament played on indoor hard courts. It was the 12th edition of the tournament and part of the 2017 ITF Women's Circuit, offering a total of $60,000 in prize money. It took place in Saguenay, Quebec, Canada between October 23 and October 29, 2017.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Japan | Risa Ozaki | 97 | 1 | |
| Canada | Bianca Andreescu | 154 | 2 | |
| Bibiane Schoofs | 229 | 3 | ||
| Canada | Carol Zhao | 233 | 4 | |
 Mexico | Victoria Rodríguez | 243 | 5 | |
| Emina Bektas | 245 | 6 | ||
| Amra Sadiković | 259 | 7 | ||
 Belgium | Ysaline Bonaventure | 271 | 8 |
The following players received wildcards into the singles main draw:
Isabelle Boulais Leylah Annie Fernandez 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:
See main article: 2017 Challenger Banque Nationale de Saguenay – Singles.
Gréta Arn def. Bibiane Schoofs, 6–1, 6–2See main article: 2017 Challenger Banque Nationale de Saguenay – Doubles.
Bianca Andreescu / Carol Zhao def. 
Francesca Di Lorenzo / 
Erin Routliffe by walkover
