2023 Brasil Tennis Challenger – Singles

This was the first edition of the tournament.

Andrea Collarini won the title after defeating Tomás Barrios Vera 6–2, 7–6(7–1) in the final.

Seeds
• # Alejandro Tabilo (quarterfinals)

• # 🇦🇷 Camilo Ugo Carabelli (semifinals)

• # 🇦🇷 Juan Manuel Cerúndolo (withdrew)

• # 🇧🇷 Felipe Meligeni Alves (second round)

• # 🇦🇷 Renzo Olivo (semifinals)

• # 🇦🇷 Facundo Díaz Acosta (withdrew)

• # 🇧🇷 Matheus Pucinelli de Almeida (first round, retired)

• # 🇦🇷 Genaro Alberto Olivieri (first round)

• # Tomás Barrios Vera (final)