2024 Oeiras Ladies Open

The 2024 Oeiras Ladies Open was a professional women's tennis tournament played on outdoor clay courts. It was the fourth edition of the tournament and first ever as a WTA 125 event, which was part of the 2024 WTA 125 tournaments. It took place at the Centro Desportivo Nacional do Jamor in Oeiras, Portugal, between 15 and 21 April 2024.

Seeds

 * Rankings are as of 8 April 2024.

Other entrants
The following players received wildcards into the singles main draw:
 * Maria Garcia
 * Matilde Jorge
 * 🇫🇷 Kristina Mladenovic
 * Ana Filipa Santos

The following players received entry from the qualifying draw:
 * Anouk Koevermans
 * 🇷🇴 Gabriela Lee
 * Tena Lukas
 * 🇺🇸 Maria Mateas

The following players received entry into the main draw as lucky losers:
 * Julia Avdeeva
 * 🇺🇸 Varvara Lepchenko
 * 🇨🇦 Katherine Sebov

Withdrawals

 * 🇪🇸 Jéssica Bouzas Maneiro → replaced by Francisca Jorge
 * 🇦🇷 María Lourdes Carlé → replaced by 🇨🇦 Katherine Sebov
 * 🇨🇿 Brenda Fruhvirtová → replaced by Alexandra Eala
 * 🇨🇿 Linda Fruhvirtová → replaced by 🇮🇹 Lucrezia Stefanini
 * Viktorija Golubic → replaced by 🇬🇧 Francesca Jones
 * 🇷🇴 Gabriela Lee → replaced by Julia Avdeeva
 * 🇺🇸 Claire Liu → replaced by 🇨🇿 Gabriela Knutson
 * 🇨🇴 Camila Osorio → replaced by Aliona Falei
 * 🇧🇷 Laura Pigossi → replaced by 🇦🇹 Sinja Kraus
 * 🇺🇸 Katie Volynets → replaced by 🇫🇷 Léolia Jeanjean → replaced by 🇺🇸 Varvara Lepchenko
 * 🇧🇪 Yanina Wickmayer → replaced by 🇫🇷 Carole Monnet
 * Tamara Zidanšek → replaced by Suzan Lamens

Seeds

 * 1 Rankings as of 8 April 2024.

Other entrants
The following team received a wildcard into the doubles main draw:
 * Maria Garcia / Ana Filipa Santos

The following team received entry as alternates:
 * Aliona Falei / 🇺🇸 Varvara Lepchenko

Withdrawals

 * 🇫🇷 Léolia Jeanjean / 🇪🇸 Nuria Párrizas Díaz → replaced by Aliona Falei / 🇺🇸 Varvara Lepchenko

Singles

 * Suzan Lamens def. Clara Tauson 6–4, 5–7, 6–4

Doubles

 * Francisca Jorge / Matilde Jorge def. 🇬🇧 Harriet Dart / 🇫🇷 Kristina Mladenovic, 6–0, 6–4