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.

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: The following players received entry as lucky losers: