2023 Aberto da República

The 2023 Aberto da República was a professional tennis tournament played on outdoor hard courts. It was the second edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Brasília, Brazil between 20 and 26 November 2023.

2023 Aberto da República
Date	20–26 November
Edition	2nd
Category	ATP Challenger Tour
Surface	Hard
Location	Brasília, Brazil
Champions
Singles
Alejandro Tabilo
Doubles
Nicolás Barrientos / André Göransson

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
CHI	Cristian Garín	88	1
CHI	Tomás Barrios Vera	106	2
BOL	Hugo Dellien	112	3
USA	Aleksandar Kovacevic	117	4
ARG	Thiago Agustín Tirante	121	5
BRA	Thiago Monteiro	131	6
USA	Nicolas Moreno de Alboran	153	7
ARG	Guido Andreozzi	180	8
USA	Oliver Crawford	193	9

• ¹ Rankings are as of 13 November 2023.

Other entrants

The following players received wildcards into the singles main draw:

• João Fonseca
• Gilbert Klier Júnior
• Eduardo Ribeiro

The following players received entry into the singles main draw as alternates:

• Benjamin Lock
• Orlando Luz

The following players received entry from the qualifying draw:

• Gonzalo Bueno
• Ignacio Buse
• Wilson Leite
• Fernando Romboli
• Pedro Sakamoto
• Alejandro Tabilo

The following players received entry as lucky losers:

• Mateus Alves
• Blaise Bicknell

Champions

Singles

Main article: 2023 Aberto da República – Singles

• Alejandro Tabilo def. Román Andrés Burruchaga 6–3, 7–6^(8–6).

Doubles

Main article: 2023 Aberto da República – Doubles

• Nicolás Barrientos / André Göransson def. Marcelo Demoliner / Rafael Matos 7–6^(7–3), 4–6, [11–9].