Doubles
2021 Porto Open
Champions	Guido Andreozzi Guillermo Durán
Runners-up	Renzo Olivo Miguel Ángel Reyes-Varela
Score	6–7(5–7), 7–6(7–5), [11–9]

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

Guido Andreozzi and Guillermo Durán won the title after defeating Renzo Olivo and Miguel Ángel Reyes-Varela 6–7^(5–7), 7–6^(7–5), [11–9] in the final.

Seeds

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

	First round							Quarterfinals							Semifinals							Final
								1	S Doumbia F Reboul	77	4	[7]
		R Olivo MÁ Reyes-Varela	77	77					R Olivo MÁ Reyes-Varela	63	6	[10]
		E Gómez G Oliveira	65	63												R Olivo MÁ Reyes-Varela	6	6
	3	R Galloway A Lawson	6	6											3	R Galloway A Lawson	2	4
	WC	Luís Faria Daniel Rodrigues	3	3				3	R Galloway A Lawson	7	6
		D Istomin D Yevseyev	6	7					D Istomin D Yevseyev	5	3
		T Cação Gonçalo Falcão	2	5																			R Olivo MÁ Reyes-Varela	77	65	[9]
		P Polansky A Tabilo																					G Andreozzi G Durán	65	77	[11]
		N Borges F Cabral	w/o						N Borges F Cabral	65	2
		G Andreozzi G Durán	6	6					G Andreozzi G Durán	77	6
	4	S Stakhovsky T-S Weissborn	4	4												G Andreozzi G Durán	6	6
		G Blancaneaux M Janvier	6	64	[6]										2	H Reese S Verbeek	3	4
		S Balaji L Margaroli	4	77	[10]				S Balaji L Margaroli	65	64
	WC	Pedro Araújo Fábio Coelho	2	6	[7]			2	H Reese S Verbeek	77	77
	2	H Reese S Verbeek	6	3	[10]

References

External links

• Main draw