2021 Rafa Nadal Open – Doubles

Doubles
2021 Rafa Nadal Open
Champions	Karol Drzewiecki Sergio Martos Gornés
Runners-up	Fernando Romboli Jan Zieliński
Score	6–4, 4–6, [10–3]

Sander Arends and David Pel were the defending champions^[1] but chose not to defend their title.

Karol Drzewiecki and Sergio Martos Gornés won the title after defeating Fernando Romboli and Jan Zieliński 6–4, 4–6, [10–3] in the final.

	First round							Quarterfinals							Semifinals							Final
	1	H Hach Verdugo MÁ Reyes-Varela	6	6
	WC	Aaron Cohen Rafael Giotis	0	2				1	H Hach Verdugo MÁ Reyes-Varela	77	6
	WC	Antoni Nadal Joan Nadal	2	2					N Chappell R Stalder	64	2
		N Chappell R Stalder	6	6											1	H Hach Verdugo MÁ Reyes-Varela	65	6	[8]
	4	K Drzewiecki S Martos Gornés	77	6											4	K Drzewiecki S Martos Gornés	77	4	[10]
		M Geerts R Roelofse	63	2				4	K Drzewiecki S Martos Gornés	w/o
		N Mejía R Quiroz	5	5					B Gojo K Żuk
		B Gojo K Żuk	7	7																		4	K Drzewiecki S Martos Gornés	6	4	[10]
		MT Barrios Vera C Gómez-Herrera	6	6																		2	F Romboli J Zieliński	4	6	[3]
		J Cerretani JA Ore	4	3					MT Barrios Vera C Gómez-Herrera	3	0
		F Fallert P Matuszewski	2	1				3	S Balaji R Ramanathan	6	6
	3	S Balaji R Ramanathan	6	6											3	S Balaji R Ramanathan	2	62
	WC	Tan Jinpeng Nathan Trouvé	4	1											2	F Romboli J Zieliński	6	77
		R Gonzales H Johnson	6	6					R Gonzales H Johnson	6	1	[11]
		T Matsui K Uesugi	7	63	[10]			2	F Romboli J Zieliński	3	6	[13]
	2	F Romboli J Zieliński	5	77	[12]

• Main draw