2021 Braga Open

The 2021 Braga Open was a professional tennis tournament played on clay courts. It was the third edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Braga, Portugal between 20 and 26 September 2021.

Seeds

 * 1 Rankings are as of 13 September 2021.

Other entrants
The following players received wildcards into the singles main draw:
 * Pedro Araújo
 * Tiago Cação
 * Luís Faria

The following players received entry into the singles main draw using protected rankings:
 * 🇮🇹 Filippo Baldi
 * 🇧🇪 Joris De Loore

The following players received entry from the qualifying draw:
 * 🇩🇪 Peter Heller
 * 🇦🇷 Santiago Rodríguez Taverna
 * 🇪🇸 Nikolás Sánchez Izquierdo
 * 🇯🇵 Kaichi Uchida

The following player received entry as a lucky loser:
 * 🇺🇸 Alex Rybakov

Singles

 * 🇧🇷 Thiago Monteiro def. 🇷🇸 Nikola Milojević 7–5, 7–5.

Doubles

 * Nuno Borges / Francisco Cabral def.  Jesper de Jong /  Bart Stevens 6–3, 6–7(4–7), [10–5].