2023 Curitiba Challenger

The 2023 Curitiba Challenger was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Curitiba, Brazil between 23 and 29 October 2023.

Seeds

 * 1 Rankings are as of 16 October 2023.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇧🇷 Gustavo Ribeiro de Almeida
 * 🇧🇷 Wilson Leite
 * 🇧🇷 Orlando Luz

The following player received entry into the singles main draw as an alternate:
 * 🇪🇸 Carlos Taberner

The following players received entry from the qualifying draw:
 * 🇧🇷 Mateus Alves
 * 🇧🇷 Pedro Boscardin Dias
 * 🇧🇷 Daniel Dutra da Silva
 * 🇵🇪 Arklon Huertas del Pino
 * 🇧🇷 Gilbert Klier Júnior
 * 🇧🇷 Nicolas Zanellato

Singles

 * 🇧🇴 Hugo Dellien def. 🇺🇸 Oliver Crawford 7–6(8–6), 4–6, 7–6(7–1).

Doubles

 * 🇦🇷 Guido Andreozzi / Ignacio Carou def. 🇪🇨 Diego Hidalgo / 🇨🇴 Cristian Rodríguez 6–4, 6–4.