2025 Brasil Tennis Open

The 2025 Brasil Tennis Open was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Porto Alegre, Brazil between 28 April and 4 May 2025.

Singles main-draw entrants

The following players received wildcards into the singles main draw:

The following player received entry into the singles main draw using a protected ranking:

The following player received entry into the singles main draw as a special exempt:

The following player received entry into the singles main draw as an alternate:

The following players received entry from the qualifying draw:

The following player received entry as a lucky loser:

Santiago Rodríguez Taverna def. Nikolás Sánchez Izquierdo 4–6, 6–4, 7–6.

Juan Carlos Prado Ángelo / Federico Zeballos def. Lautaro Midón / Gonzalo Villanueva 7–5, 7–5.