2021 Dutch Open – Doubles

Harri Heliövaara and Emil Ruusuvuori were the defending champions^[1] but chose not to defend their title.

Doubles
2021 Dutch Open
Champions	Luca Castelnuovo Manuel Guinard
Runners-up	Sergio Galdós Gonçalo Oliveira
Score	0–6, 6–4, [11–9]

Main article: 2021 Dutch Open (tennis)

Luca Castelnuovo and Manuel Guinard won the title after defeating Sergio Galdós and Gonçalo Oliveira 0–6, 6–4, [11–9] in the final.

Seeds

1. Sergio Galdós / Gonçalo Oliveira (final)
2. Dustin Brown / Tristan-Samuel Weissborn (semifinals)
3. Guido Andreozzi / Guillermo Durán (first round)
4. Diego Hidalgo / Sergio Martos Gornés (first round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

	First round							Quarterfinals							Semifinals							Final
								1	S Galdós G Oliveira	6	7
		M Geerts A Kadhe	6	6					M Geerts A Kadhe	3	5
		J Nikles C Sánchez Jover	2	4											1	S Galdós G Oliveira	6	6
	4	D Hidalgo S Martos Gornés	3	4											WC	M de Krom B van den Berg	2	2
		G Brouwer J Sels	6	6					G Brouwer J Sels	65	5
	WC	Alexander Maarten Jong Ryan Nijboer						WC	M de Krom B van den Berg	77	7
	WC	Michiel de Krom B van den Berg	w/o																			1	S Galdós G Oliveira	6	4	[9]
		J de Jong B Stevens	4	62																			L Castelnuovo M Guinard	0	6	[11]
	WC	Daniel de Jonge G den Ouden	6	77				WC	D de Jonge G den Ouden	3	2
		L Castelnuovo M Guinard	7	611	[10]				L Castelnuovo M Guinard	6	6
	3	G Andreozzi G Durán	5	713	[5]											L Castelnuovo M Guinard	6	6
		J Härteis Jeremy Jahn	4	4											2	D Brown T-S Weissborn	4	3
		M Kestelboim F Mena	6	6					M Kestelboim F Mena	3	2
		A Vatutin M Vrbenský	4	3				2	D Brown T-S Weissborn	6	6
	2	D Brown T-S Weissborn	6	6