The 2023 Saint-Tropez Open was a professional tennis tournament played on hard courts. It was the third edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Saint-Tropez, France between 18 and 24 September 2023.
Singles main-draw entrants
Seeds
1 Rankings are as of 11 September 2023.
Other entrants
The following players received wildcards into the singles main draw: Ugo Blanchet Arthur Géa Ugo Humbert
The following players received entry into the singles main draw as alternates: Mattia Bellucci Harold Mayot
The following players received entry from the qualifying draw: Dan Added Peter Gojowczyk Billy Harris Oleksii Krutykh Mark Lajal Jules Marie
The following players received entry as lucky losers: Mathias Bourgue Eliakim Coulibaly Alexander Cozbinov Kyrian Jacquet
Champions
Singles
Constant Lestienne def. Liam Broady 4–6, 6–3, 6–4.
Doubles
Dan Added / Albano Olivetti def. Jonathan Eysseric / Harold Mayot 3–6, 1–0 ret.