The Porto Open is a professional tennis tournament played on outdoor hard courts.

It is currently part of the ATP Challenger Tour and the ITF Women's World Tennis Tour, and has been held annually at the Complexo Ténis Monte Aventino in Porto, Portugal, since 1999 for women and since 2007 for men.

[1] Between 2001 and 2002, the tournament was classed as a Tier IV event on the Women's Tennis Association (WTA) Tour.

The most notable player to win the singles was three-time French Open champion Arantxa Sánchez Vicario, who won the 2001 event.

This WTA Tour tennis tournament article is a stub.