- Source: 2023 Open Quimper Bretagne
The 2023 Open Quimper Bretagne was a professional tennis tournament played on hard courts. It was the 14th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Quimper, France between 24 and 29 January 2023.
Singles main-draw entrants
= Seeds
=1 Rankings are as of 16 January 2023.
= Other entrants
=The following players received wildcards into the singles main draw:
Arthur Fils
Pierre-Hugues Herbert
Lucas Pouille
The following players received entry into the singles main draw as alternates:
Sebastian Ofner
Santiago Rodríguez Taverna
The following players received entry from the qualifying draw:
Calvin Hemery
Illya Marchenko
Nicolas Moreno de Alboran
Giovanni Mpetshi Perricard
Johan Tatlot
Bu Yunchaokete
The following players received entry as lucky losers:
Evan Furness
Nick Hardt
Champions
= Singles
=Grégoire Barrère def. Arthur Fils 6–1, 6–4.
= Doubles
=Sadio Doumbia / Fabien Reboul def. Anirudh Chandrasekar / Arjun Kadhe 6–2, 6–4.