The 2019 Challenger Banque Nationale de Saguenay was a professional tennis tournament played on indoor hard courts. It was the fourteenth edition of the tournament which was part of the 2019 ITF Women's World Tennis Tour. It took place in Saguenay, Quebec, Canada between 21 and 27 October 2019.
Singles main-draw entrants
Seeds
1 Rankings are as of 14 October 2019.
Other entrants
The following players received wildcards into the singles main draw: Jada Bui Mélodie Collard Raphaëlle Lacasse Maria Tanasescu
The following players received entry from the qualifying draw: Ariana Arseneault Ayan Broomfield Sarah-Maude Fortin Jasmin Jebawy Jessica Livianu Anna Morgina Kennedy Shaffer Marina Stakusic
The following player received entry as a lucky loser: Safiya Carrington
Champions
Singles
Indy de Vroome def. Robin Anderson, 3–6, 6–4, 7–5
Doubles
Mélodie Collard / Leylah Annie Fernandez def. Samantha Murray / Bibiane Schoofs, 7–6(7–3), 6–2