2023 Challenger AAT – Singles

Francisco Comesaña was the defending champion but lost in the second round to Andrea Collarini.

Thiago Seyboth Wild won the title after defeating Luciano Darderi 6–3, 6–3 in the final.

Seeds
• # 🇦🇷 Andrea Collarini (semifinals)

• # 🇦🇷 Thiago Agustín Tirante (withdrew)

• # 🇮🇹 Luciano Darderi (final)

• # 🇦🇷 Juan Pablo Ficovich (first round)

• # 🇦🇷 Genaro Alberto Olivieri (withdrew)

• # 🇩🇴 Nick Hardt (second round)

• # 🇦🇷 Mariano Navone (semifinals)

• # 🇧🇷 Thiago Seyboth Wild (champion)