| 2023 Open de Rennes | |
|---|---|
| Date | 11–17 September |
| Edition | 17th |
| Surface | Hard (Indoor) |
| Location | Rennes, France |
| Champions | |
| Singles | |
 Maxime Cressy | |
| Doubles | |
 Sander Arends / David Pel | |
The 2023 Open de Rennes was a professional tennis tournament played on hard courts. It was the 17th edition of the tournament and part of the 2023 ATP Challenger Tour. It took place in Rennes, France between 11 and 17 September 2023.