| 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.
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Asia Muhammad and Taylor Townsend were the defending champions, having won the last edition in 2019, however both players chose not to participate.
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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.
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