2023 Winnipeg National Bank Challenger
The 2023 Winnipeg National Bank Challenger was a professional tennis tournament played on outdoor hard courts. It was the 6th edition of the tournament and part of the 2023 ATP Challenger Tour. It took place in Winnipeg, Manitoba, Canada between August 14 and 19, 2023.

Singles main-draw entrants

Seeds

1 Rankings are as of August 7, 2023.

Other entrants
The following players received wildcards into the singles main draw:
 Taha Baadi
 Dan Martin
 Brayden Schnur

The following player received entry into the singles main draw using a protected ranking:
  Thai-Son Kwiatkowski

The following players received entry into the singles main draw as alternates:
  Billy Harris
  Christian Harrison
  Ryan Peniston

The following players received entry from the qualifying draw:
  Ulises Blanch
  Darian King
  Strong Kirchheimer
  Omni Kumar
  Aidan Mayo
  Kiranpal Pannu

Champions

Singles

 Ryan Peniston def.  Leandro Riedi 6–4, 4–6, 6–4.

Doubles
 
 Gabriel Diallo /  Leandro Riedi def.  Juan Carlos Aguilar /  Taha Baadi 6–2, 6–3.

References

2023 ATP Challenger Tour
2023
August 2023 sports events in Canada
2023 in Canadian sports