| Date: | 16–22 October 2023 |
| Edition: | 16th |
| Surface: | Hard / Indoor |
| Location: | Saguenay, Quebec, Canada |
| Category: | ITF Women's World Tennis Tour |
| Prize Money: | $60,000 |
| Champs: |  Katherine Sebov |
| Champd: |  Robin Anderson / Dalayna Hewitt |
| Before Year: | 2022 |
| Main Name: | Challenger de Saguenay |
The 2023 Challenger Banque Nationale de Saguenay was a professional tennis tournament played on indoor hard courts. It was the sixteenth edition of the tournament which was part of the 2023 ITF Women's World Tennis Tour. It took place in Saguenay, Quebec, Canada between 16 and 22 October 2023.[1]
See main article: 2023 Challenger Banque Nationale de Saguenay – Singles.
Katherine Sebov def. 
Fanny Stollár, 6–4, 6–4See main article: 2023 Challenger Banque Nationale de Saguenay – Doubles.
Robin Anderson / Dalayna Hewitt def. Mia Kupres / Johanne Svendsen, 6–1, 6–4| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Canada | Katherine Sebov | 153 | 1 | |
 Australia | Arina Rodionova | 163 | 2 | |
| Lesley Pattinama Kerkhove | 229 | 3 | ||
 Japan | Haruka Kaji | 245 | 4 | |
 Lithuania | Justina Mikulskytė | 276 | 6 | |
| Canada | Marina Stakusic | 299 | 7 | |
| Hungary | Fanny Stollár | 304 | 8 |
The following players received wildcards into the singles main draw:
Isabelle Boulais Mia Kupres Nadia Lagaev Rhea VermaThe following players received entry from the qualifying draw:
Carolyn Campana Paris Corley Louise Kwong Scarlett Nicholson
Natasha Sengphrachanh Layne Sleeth Anna Ulyashchenko Amy ZhuThe following player received entry as a lucky loser: