| Doubles | |
|---|---|
| 2023 Oeiras Ladies Open | |
| Champions |  Ulrikke Eikeri  Eri Hozumi |
| Runners-up |  Francisca Jorge Matilde Jorge |
| Score | 4–6, 6–4, [10–5] |
Katarzyna Piter and Kimberley Zimmermann were the defending champions [1] but Zimmermann chose not to participate. Piter partnered alongside Bibiane Schoofs but lost to Francisca and Matilde Jorge in the quarterfinals.
Ulrikke Eikeri and Eri Hozumi won the title, defeating Francisca and Matilde Jorge in the final, 4–6, 6–4, [10–5].
Ulrikke Eikeri / Eri Hozumi (champions)
Natela Dzalamidze / 
Lidziya Marozava (first round)
Alicia Barnett / Olivia Nicholls (semifinals)
Fernanda Contreras / 
Asia Muhammad (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | U Eikeri E Hozumi | 63 | 7 | [10] | |||||||||||||||||||||||
 A Dețiuc J Malečková | 77 | 5 | [4] | 1 | U Eikeri E Hozumi | 7 | 4 | [11] | |||||||||||||||||||
| WC | M Garcia A Voloshchuk | 1 | 1 |  A Bondár M Bouzková | 5 | 6 | [9] | ||||||||||||||||||||
| A Bondár M Bouzková | 6 | 6 | 1 | U Eikeri E Hozumi | 6 | 6 | |||||||||||||||||||||
| 3 | A Barnett O Nicholls | 4 | 6 | [10] | 3 | A Barnett O Nicholls | 2 | 1 | |||||||||||||||||||
| WC |  L Cortez Llorca I Murta | 6 | 1 | [6] | 3 | A Barnett O Nicholls | 7 | 6 | |||||||||||||||||||
 N Abduraimova M Uchijima | 6 | 6 | N Abduraimova M Uchijima | 5 | 1 | ||||||||||||||||||||||
 IL Roșca  A Wagner | 2 | 4 | 1 | U Eikeri E Hozumi | 4 | 6 | [10] | ||||||||||||||||||||
| WC | E Hamaliy S Lança | 1 | 1 | F Jorge M Jorge | 6 | 4 | [5] | ||||||||||||||||||||
 K Piter  B Schoofs | 6 | 6 | K Piter B Schoofs | 2 | 3 | ||||||||||||||||||||||
| F Jorge M Jorge | 4 | 6 | [12] | F Jorge M Jorge | 6 | 6 | |||||||||||||||||||||
| 4 | F Contreras A Muhammad | 6 | 4 | [10] | F Jorge M Jorge | 6 | 6 | ||||||||||||||||||||
 I Gamarra Martins  J Mikulskytė | 5 | 6 | [10] | I Gamarra Martins J Mikulskytė | 1 | 3 | |||||||||||||||||||||
 D Parry E Yashina | 7 | 4 | [5] | I Gamarra Martins J Mikulskytė | 77 | 6 | |||||||||||||||||||||
| A Hesse K Mladenovic | 6 | 63 | [10] | A Hesse K Mladenovic | 64 | 4 | |||||||||||||||||||||
| 2 | N Dzalamidze L Marozava | 4 | 77 | [3] | |||||||||||||||||||||||
Maja Chwalińska and Daria Kuczer were the defending champions, but chose to participate with different partners. Chwalińska played alongside Ulrikke Eikeri, while Kuczer partnered Stefania Rogozińska Dzik. The two teams played in the first round, with Chwalińska and Eikeri winning.
Dayana Yastremska was the defending champion, but withdrew before the tournament began.
Asia Muhammad and Taylor Townsend were the defending champions, having won the last edition in 2019, however both players chose not to participate.
Georgina García Pérez and Oksana Kalashnikova were the defending champions but chose not to participate.
Fiona Ferro was the defending champion from 2019, when the event was last held, but lost to Clara Burel in the quarterfinals.
Anastasia Potapova and Yana Sizikova were the defending champions, but they decided not to participate this year.
Arantxa Rus and Tamara Zidanšek were the reigning champions, but chose not to participate.
Samantha Stosur and Zhang Shuai defeated Coco Gauff and Caty McNally in the final, 6–3, 3–6, 6–3 to win the women's doubles title at the 2021 US Open. It was Stosur's fourth major title in women's doubles and eighth major overall, as well as Zhang's second major title; this was the team's second major title, following the 2019 Australian Open. This was the first major final for Gauff and for McNally.
This was the first edition of the women's event.
Eri Hozumi and Makoto Ninomiya defeated Monica Niculescu and Alexandra Panova in the final, 6–7(7–9), 6–3, [10–8] to win the doubles tennis title at the 2022 Morocco Open.
Eri Hozumi and Makoto Ninomiya were the reigning champions. Hozumi partnered Ulrikke Eikeri, but lost in the final to Greet Minnen and Bibiane Schoofs. Ninomiya chose to participate in Madrid instead.
Sabrina Santamaria and Yana Sizikova defeated Lidziya Marozava and Ingrid Gamarra Martins in the final, 3–6, 6–1, [10–8] to win the doubles tennis title at the 2023 Morocco Open.
Viktoriya Tomova won the title, defeating Claire Liu in the final, 6–1, 6–4.
Ulrikke Eikeri and Ingrid Neel won the title by walkover after Cristina Bucșa and Alexandra Panova withdrew from the final.
Ulrikke Eikeri and Ingrid Neel defeated Eri Hozumi and Makoto Ninomiya in the final, 3–6, 7–5, [10–5] to win the doubles tennis title at the 2023 Toray Pan Pacific Open.
Sara Errani and Jasmine Paolini won the doubles title at the 2024 Upper Austria Ladies Linz, defeating Nicole Melichar-Martinez and Ellen Perez in the final, 7–5, 4–6, [10–7].
The 2023 Oeiras Ladies Open was a professional tennis tournament played on outdoor clay courts. It was the third edition of the tournament, which was part of the 2023 ITF Women's World Tennis Tour. It took place in Oeiras, Portugal, between 17 and 23 April 2023.
The 2023 Oeiras CETO Open was a professional tennis tournament played on outdoor clay courts. It was the eighth edition of the tournament, which was part of the 2023 ITF Women's World Tennis Tour. It took place in Oeiras, Portugal, between 24 and 30 April 2023.
Jéssica Bouzas Maneiro and Guiomar Maristany were the defending champions but chose not to participate.
Ulrikke Eikeri and Eri Hozumi were the defending champions but Eikeri chose to compete in Stuttgart, whilst Hozumi chose not to participate.