2024 Open de Oeiras

The 2024 Open de Oeiras was a professional tennis tournament played on clay courts. It was the tenth edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Oeiras, Portugal between 15 and 21 April 2024.

Seeds

 * 1 Rankings are as of 8 April 2024.

Other entrants
The following players received wildcards into the singles main draw:
 * Gastão Elias
 * Jaime Faria
 * Frederico Ferreira Silva

The following players received entry into the singles main draw as special exempts:
 * 🇸🇰 Jozef Kovalík
 * 🇮🇹 Stefano Napolitano

The following players received entry from the qualifying draw:
 * 🇧🇬 Adrian Andreev
 * 🇫🇷 Mathys Erhard
 * 🇧🇪 Gauthier Onclin
 * 🇫🇷 Valentin Royer
 * Tseng Chun-hsin
 * 🇮🇹 Samuel Vincent Ruggeri

The following player received entry as a lucky loser:
 * 🇵🇱 Maks Kaśnikowski

Singles

 * 🇦🇷 Francisco Comesaña def. 🇫🇷 Ugo Blanchet 6–4, 3–6, 7–5.

Doubles

 * 🇸🇪 Filip Bergevi / Mick Veldheer def. 🇪🇸 Sergio Martos Gornés /  Petros Tsitsipas 6–1, 6–4.