2025 Porto Open

The 2025 Porto Open was a professional tennis tournament played on outdoor hardcourts. It was the nineteenth edition of the men's event and the twenty-second edition of the women's event. The tournament was part of the 2025 WTA 125 tournaments, the 2025 ATP Challenger Tour and the ITF Men's Circuit. It took place in Porto, Portugal, between 14 and 20 July 2025 for the women and between 21 July and 3 August 2025 for the men.

ATP singles main-draw entrants

¹ Rankings are as of 21 July 2025.

The following players received wildcards into the singles main draw:

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 players received wildcards into the singles main draw:

The following players received entry from the qualifying draw:

; Before the tournament

The following pair received a wildcard into the doubles main draw:

Moez Echargui def. Francesco Maestrelli 6–3, 6–2.

Tereza Valentová def. Lanlana Tararudee 6–4, 6–2

George Goldhoff / Ray Ho def. Nicolás Barrientos / Joran Vliegen 6–4, 6–4.

Carmen Corley / Ivana Corley def. Liang En-shuo / Peangtarn Plipuech 6–3, 6–1