The 2023 Braga Open was a professional tennis tournament played on clay courts. It was the fifth edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Braga, Portugal between 24 September and 1 October 2023.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Hungary | Zsombor Piros | 110 | 1 | |
 Kazakhstan | Timofey Skatov | 123 | 2 | |
 United Kingdom | Jan Choinski | 134 | 3 | |
 Spain | Pablo Llamas Ruiz | 135 | 4 | |
| Ivan Gakhov | 163 | 5 | ||
 France | Titouan Droguet | 165 | 6 | |
 Czech Republic | Zdeněk Kolář | 171 | 7 | |
 Italy | Matteo Gigante | 173 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
Javier Barranco Cosano
Moez Echargui Oriol Roca Batalla Carlos Sánchez Jover Oriol Roca Batalla def. Duje Ajduković 4–6, 6–1, 6–1.See main article: 2023 Braga Open – Doubles.
Marco Bortolotti / 
Alexandru Jecan def. Stefano Travaglia / Alexander Weis 7–5, 7–5.