2025 Open de Oeiras


The 2025 Open de Oeiras was a professional tennis tournament played on clay courts. It was the 12th edition of the tournament which was part of the 2025 ATP Challenger Tour. It took place in Oeiras, Portugal between 14 and 20 April 2025.

Singles main-draw entrants

Seeds

1 Rankings are as of 7 April 2025.

Other entrants

The following players received wildcards into the singles main draw:
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:

Champions

Singles

Elmer Møller def. Francisco Comesaña 6–0, 6–4.

Doubles

Karol Drzewiecki / Piotr Matuszewski def. Francisco Cabral / Lucas Miedler 6–4, 3–6, .