The Caldas da Rainha Ladies Open is a tournament for professional female tennis players. The event is classified as a $60,000+H ITF Women's Circuit tournament and has been held on outdoor hardcourts in Caldas da Rainha, Portugal, since 2019.
| Portugal Ladies Open | |
|---|---|
 2023 Caldas da Rainha Ladies Open | |
| ITF Women's Tour | |
| Event name | Caldas da Rainha Ladies Open (2022–) Portugal Ladies Open (2021) Oeste Ladies Open (2019) |
| Location | Caldas da Rainha, Portugal |
| Venue | Clube Ténis Caldas da Rainha |
| Category | ITF Women's Circuit |
| Surface | Hard |
| Draw | 32S/24Q/16D |
| Prize money | $60,000+H |
Past finals edit
Singles edit
| Year | Champion | Runner-up | Score |
|---|---|---|---|
| 2023 |  Petra Marčinko |
 Léolia Jeanjean |
6–4, 6–1 |
| 2022 |  Lucrezia Stefanini |
 Marina Bassols Ribera |
3–6, 6–1, 7–6(7–3) |
| 2021 |  Zheng Saisai |
Harmony Tan |
6–4, 3–6, 6–3 |
| 2020 | tournament cancelled due to the COVID-19 pandemic
| ||
| 2019 |  Isabella Shinikova |
 Natalija Kostić |
6–3, 2–0 ret. |
Doubles edit
| Year | Champions | Runners-up | Score |
|---|---|---|---|
| 2023 |  Francisca Jorge Matilde Jorge |
 Ashley Lahey Tian Fangran |
6–1, 2–6, [10–7] |
| 2022 | Adriana Reami Anna Rogers |
Elysia Bolton Jamie Loeb |
6–4, 7–5 |
| 2021 |  Momoko Kobori Hiroko Kuwata |
 Alicia Barnett Olivia Nicholls |
7–6(7–5), 7–6(7–2) |
| 2020 | tournament cancelled due to the COVID-19 pandemic
| ||
| 2019 | Jessika Ponchet Isabella Shinikova |
 Anna Danilina  Vivian Heisen |
6–1, 6–3 |