2023 San Marino Open

The 2023 San Marino Open was a professional tennis tournament played on clay courts. The 30th edition of the tournament, which was part of the 2023 ATP Challenger Tour, took place in City of San Marino, San Marino between 31 July and 6 August 2023.

Seeds

 * 1 Rankings are as of 24 July 2023.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇮🇹 Flavio Cobolli
 * 🇸🇲 Marco De Rossi
 * 🇮🇹 Fabio Fognini

The following players received entry from the qualifying draw:
 * 🇮🇹 Enrico Dalla Valle
 * 🇫🇷 Kyrian Jacquet
 * 🇮🇹 Marcello Serafini
 * 🇪🇸 Carlos Taberner
 * Valentin Vacherot
 * 🇮🇹 Alexander Weis

Singles

 * 🇪🇸 Jaume Munar def. 🇮🇹 Andrea Pellegrino 6–4, 6–1.

Doubles

 * Ivan Liutarevich / 🇺🇦 Vladyslav Manafov def. 🇫🇷 Théo Arribagé / 🇫🇷 Luca Sanchez 6–4, 7–6(10–8).