2023 Championnats Banque Nationale de Granby

The 2023 Championnats Banque Nationale de Granby was a professional tennis tournament played on outdoor hard courts. It was the 28th edition of the tournament, which was part of the 2023 ATP Challenger Tour and the 2023 ITF Women's World Tennis Tour. It took place in Granby, Quebec, Canada between 17 and 23 July 2023.

Men's singles

 * 🇨🇦 Alexis Galarneau def. 🇦🇺 Philip Sekulic 6–4, 3–6, 6–3.

Women's singles

 * 🇺🇸 Kayla Day def. 🇨🇦 Katherine Sebov, 6–4, 2–6, 7–5.

Men's doubles

 * 🇺🇸 Christian Harrison / Miķelis Lībietis def. 🇦🇺 Tristan Schoolkate / 🇦🇺 Adam Walton 6–4, 6–3.

Women's doubles

 * 🇲🇽 Marcela Zacarías / 🇲🇽 Renata Zarazúa def. 🇺🇸 Carmen Corley / 🇺🇸 Ivana Corley, 6–3, 6–3.

Seeds

 * 1 Rankings are as of July 3, 2023.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇨🇦 Justin Boulais
 * 🇨🇦 Liam Draxl
 * 🇨🇦 Brayden Schnur

The following players received entry into the singles main draw using protected rankings:
 * 🇺🇸 Christian Harrison
 * 🇺🇸 Thai-Son Kwiatkowski

The following player received entry into the singles main draw as an alternate:
 * 🇦🇺 Tristan Schoolkate

The following players received entry from the qualifying draw:
 * 🇯🇲 Blaise Bicknell
 * 🇺🇸 Nick Chappell
 * 🇺🇸 Patrick Kypson
 * 🇦🇺 Philip Sekulic
 * 🇺🇸 Joshua Sheehy
 * 🇯🇵 James Trotter

The following players received entry as lucky losers:
 * 🇲🇩 Alexander Cozbinov
 * 🇺🇸 Nathan Ponwith

Seeds

 * 1 Rankings are as of July 3, 2023.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇨🇦 Bianca Fernandez
 * 🇨🇦 Mia Kupres
 * 🇨🇦 Layne Sleeth
 * 🇨🇦 Annabelle Xu

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

The following players received entry from the qualifying draw:
 * 🇺🇸 Ayana Akli
 * 🇺🇸 Eryn Cayetano
 * 🇺🇸 Carmen Corley
 * 🇺🇸 Jaeda Daniel
 * 🇺🇸 Ava Markham
 * Savanna Lý Nguyễn
 * Ana Paula Neffa de los Ríos
 * 🇨🇦 Rhea Verma