2021 São Paulo Challenger de Tênis – Doubles

Luis David Martínez and Felipe Meligeni Alves were the defending champions but chose to defend their title with different partners. Martínez partnered Fernando Romboli but lost in the semifinals to Nicolás Barrientos and Alejandro Gómez. Meligeni Alves partnered Rafael Matos but withdrew before the final due to a positive test for COVID-19.

Barrientos and Gómez won the title by walkover after Matos and Meligeni Alves withdrew before the final.

Seeds

First round				Quarterfinals				Semifinals				Final

1	R Matos F Meligeni Alves	6	6
	R Cid Subervi A Collarini	4	2	1	R Matos F Meligeni Alves	6	6
WC	M Alves G Heide	3	7		O Luz I Marcondes	3	2
	O Luz I Marcondes	6	6					1	R Matos F Meligeni Alves	6	6
3	J Cerretani L Margaroli	5	3						P Cachin M Cuevas	2	4
	P Cachin M Cuevas	7	6		P Cachin M Cuevas	7	6
WC	D Dutra da Silva P Sakamoto	4	6	WC	D Dutra da Silva P Sakamoto	6	2
	A González T Seyboth Wild	6	3									1	R Matos F Meligeni Alves
PR	JP Ficovich Matías Zukas	7	3									4	N Barrientos A Gómez	w/o
	T Lipovšek Puches JI Londero	6	6	PR	JP Ficovich M Zukas	4	6
	M Vervoort F Zeballos	7	4	4	N Barrientos A Gómez	6	7
4	N Barrientos A Gómez	6	6					4	N Barrientos A Gómez	6	7
Alt	L Darderi J Nikles	6	1					2	LD Martínez F Romboli	4	5
Alt	Facundo Juárez G Villanueva	2	6	Alt	F Juárez G Villanueva	4	6
WC	J Pereira Gabriel Roveri Sidney	1	6	2	LD Martínez F Romboli	6	7
2	LD Martínez F Romboli	6	7