Singles
2023 Caldas da Rainha Ladies Open
Final
Champion	Petra Marčinko
Runner-up	Léolia Jeanjean
Score	6–4, 6–1
Events
Singles Doubles
← 2022 · Caldas da Rainha Ladies Open · 2024 →

Lucrezia Stefanini was the defending champion^[1] but chose not to participate.

Petra Marčinko won the title, defeating Léolia Jeanjean in the final, 6–4, 6–1.

	Semifinals							Final
	1	Laura Pigossi	4	4
	3	Léolia Jeanjean	6	6
								3	Léolia Jeanjean	4	1
								7	Petra Marčinko	6	6
		Alina Korneeva	66	65
	7	Petra Marčinko	78	77

	First round							Second round							Quarterfinals							Semifinals
	1	L Pigossi	6	6
	WC	F Tian	3	0				1	L Pigossi	6	7
	Q	D Hewitt	6	6				Q	D Hewitt	2	5
	WC	C Mesquita	1	1											1	L Pigossi	6	1
		T Babos	6	6												T Babos	2	0r
	WC	S Lança	1	1					T Babos	2	77	77
		N Abduraimova	1	6	6				N Abduraimova	6	61	63
	5	C Naef	6	3	3																	1	L Pigossi	4	4
	3	L Jeanjean	61	6	77																	3	L Jeanjean	6	6
		M Barthel	77	2	65			3	L Jeanjean	6	6
		A Zakharova	3	2					M Rouvroy	2	4
		M Rouvroy	6	6											3	L Jeanjean	5	6	6
	Q	S Daavettila	4	3												S Kartal	7	3	2
	Q	E Silva	6	6				Q	E Silva	4	2
		S Kartal	6	2	6				S Kartal	6	6
	6	Y Miyazaki	3	6	4

	First round							Second round							Quarterfinals							Semifinals
	8	F Ferro	6	6
	LL	R Bhatia	1	2				8	F Ferro	64	7	2
	Q	A Hesse	7	6				Q	A Hesse	77	5	6
		F Jorge	5	4											Q	A Hesse	3	2
		A Korneeva	6	6												A Korneeva	6	6
		L Bošković	3	4					A Korneeva	6	6
	Q	E Malõgina	2	0				4	D Snigur	1	3
	4	D Snigur	6	6																			A Korneeva	66	65
	7	P Marčinko	6	6																		7	P Marčinko	78	77
	Q	A Lahey	4	4				7	P Marčinko	6	6
	Q	O Helmi	7	4	1				M Bondarenko	3	2
		M Bondarenko	5	6	6										7	P Marčinko	6	6
		A Robbe	2	7	6											A Robbe	3	1
	WC	A Voloshchuk	6	5	1				A Robbe	6	4
	Q	S Bandecchi	4	7	3			2	N Párrizas Díaz	4	1r
	2	N Párrizas Díaz	6	5	6

• Main Draw