2021 Florianópolis Challenger

The 2021 Florianópolis Challenger was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Florianópolis, Brazil from 6 to 12 December 2021.

Seeds

 * 1 Rankings are as of 29 November 2021.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇧🇷 Mateus Alves
 * 🇧🇷 Pedro Boscardin Dias
 * 🇧🇷 Gustavo Heide

The following players received entry into the singles main draw as alternates:
 * 🇮🇹 Luciano Darderi
 * 🇦🇷 Gonzalo Villanueva
 * 🇦🇷 Matías Zukas

The following players received entry from the qualifying draw:
 * 🇨🇴 Nicolás Barrientos
 * 🇧🇷 Wilson Leite
 * 🇧🇷 Igor Marcondes
 * 🇧🇴 Federico Zeballos

Singles

 * 🇧🇷 Igor Marcondes def. 🇧🇴 Hugo Dellien 6–2, 6–4.

Doubles

 * 🇨🇴 Nicolás Barrientos / 🇨🇴 Alejandro Gómez def. Martín Cuevas / 🇧🇷 Rafael Matos 6–3, 6–3.