| 2023 Open Quimper Bretagne | |
|---|---|
| Date | 24–29 January |
| Edition | 14th |
| Surface | Hard (indoor) |
| Location | Quimper, France |
| Champions | |
| Singles | |
 Grégoire Barrère | |
| Doubles | |
| Sadio Doumbia / Fabien Reboul | |
The 2023 Open Quimper Bretagne Occidentale 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.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| FRA | |||
| FRA | Grégoire Barrère | 83 | 2 |
 CAN | Vasek Pospisil | 99 | 3 |
 MDA | Radu Albot | 100 | 4 |
 SUI | Dominic Stricker | 118 | 5 |
 AUT | Dennis Novak | 132 | 6 |
 ITA | Matteo Arnaldi | 134 | 7 |
| FRA | Luca Van Assche | 143 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry into the singles main draw as alternates:
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:
Grégoire Barrère def. Arthur Fils 6–1, 6–4. Sadio Doumbia / Fabien Reboul def. 
Anirudh Chandrasekar / Arjun Kadhe 6–2, 6–4.
