2023 Open de Oeiras II


The 2023 Open de Oeiras II was a professional tennis tournament played on clay courts. It was the ninth edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Oeiras, Portugal between 15 and 20 May 2023.

Singles main-draw entrants

Seeds

1 Rankings are as of 8 May 2023.

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:

Champions

Singles

Facundo Díaz Acosta def. Aleksandar Vukic 6–4, 6–3.

Doubles

Luke Johnson / Sem Verbeek def. Jaime Faria / Henrique Rocha 6–7, 7–5, .