Doubles
2021 Oeiras Ladies Open
Champions	Lidziya Marozava Andreea Mitu
Runners-up	Marina Melnikova Conny Perrin
Score	3–6, 6–4, [10–3]

This was the first edition of the tournament.^[1]

Lidziya Marozava and Andreea Mitu won the title, defeating Marina Melnikova and Conny Perrin in the final, 3–6, 6–4, [10–3].

Seeds

Draw

Draw

	First round							Quarterfinals							Semifinals							Final
	1	L Marozava A Mitu	6	7
	Alt	C Paquet D Parry	2	5				1	L Marozava A Mitu	6	77
		E Silva K Zimmermann	6	6					E Silva K Zimmermann	4	65
		S Lansere I Shinikova	3	2											1	L Marozava A Mitu	7	6
	3	RL Jani R Voráčová	7	1	[7]											N Dzalamidze V Grammatikopoulou	5	3
		N Dzalamidze V Grammatikopoulou	5	6	[10]				N Dzalamidze V Grammatikopoulou	6	6
		A Kalinina R Šramková						WC	E Hamaliy AF Santos	2	1
	WC	E Hamaliy AF Santos	w/o																			1	L Marozava A Mitu	3	6	[10]
	WC	F Jorge I Murta	3	6	[9]																		M Melnikova C Perrin	6	4	[3]
		M Melnikova C Perrin	6	3	[11]				M Melnikova C Perrin	77	6
	WC	M Jorge M Santos	2	2				4	S Shapatava E Webley-Smith	65	1
	4	S Shapatava E Webley-Smith	6	6												M Melnikova C Perrin	6	6
		N Kostić R Șerban	2	5												J-h Choi N-l Han	2	2
		J-h Choi N-l Han	6	7					J-h Choi N-l Han	77	6
		E Guerrero Álvarez Jia Lu						2	G García Pérez M Minella	65	4
	2	G García Pérez M Minella	w/o

References

• Main Draw