2023 AON Open Challenger

The 2023 AON Open Challenger was a professional tennis tournament played on clay courts. It was the 19th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Genoa, Italy between 4 and 10 September 2023.

Seeds

 * 1 Rankings are as of 28 August 2023.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇮🇹 Enrico Dalla Valle
 * 🇮🇹 Giovanni Fonio
 * 🇮🇹 Marcello Serafini

The following players received entry from the qualifying draw:
 * Hady Habib
 * 🇮🇹 Federico Iannaccone
 * 🇮🇹 Giovanni Oradini
 * 🇮🇹 Andrea Picchione
 * 🇮🇹 Lorenzo Rottoli
 * Tseng Chun-hsin

The following player received entry as a lucky loser:
 * 🇷🇸 Miljan Zekić

Singles

 * 🇧🇷 Thiago Seyboth Wild def. 🇮🇹 Fabio Fognini 6–2, 7–6(7–3).

Doubles

 * 🇮🇹 Giovanni Oradini / 🇮🇹 Lorenzo Rottoli def. 🇷🇸 Ivan Sabanov / 🇷🇸 Matej Sabanov 6–4, 6–3.