2021 Aberto da República – Men's singles

Men's singles
2021 Aberto da República
Final
Champion	Federico Coria
Runner-up	Jaume Munar
Score	7–5, 6–3
Events
Singles men women Doubles men women
Aberto da República · 2023 →

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

Federico Coria won the title after defeating Jaume Munar 7–5, 6–3 in the final.

	Semifinals							Final
	1	Federico Coria	6	2
	4	Francisco Cerúndolo	1	1r
								1	Federico Coria	7	6
								2	Jaume Munar	5	3
		Pedro Cachin	3	77	3
	2	Jaume Munar	6	62	6

	First round							Second round							Quarterfinals							Semifinals
	1	F Coria	6	79
	Q	L Darderi	3	67				1	F Coria	6	77
	WC	Wilson Leite	6	6				WC	W Leite	4	65
		A Collarini	4	4											1	F Coria	712	6
		F Meligeni Alves	4	6	2										8	JI Londero	610	4
		P Sakamoto	6	3	0r				F Meligeni Alves	4	66
		J Nikles	4	4				8	JI Londero	6	78
	8	JI Londero	6	6																		1	F Coria	6	2
	4	F Cerúndolo	6	6																		4	F Cerúndolo	1	1r
	LL	J Pereira	2	1				4	F Cerúndolo	5	6	6
		GA Olivieri	2	6	6				GA Olivieri	7	3	4
		M Pucinelli de Almeida	6	2	4										4	F Cerúndolo	77	6
	WC	G Heide	7	1	5											H Casanova	63	4
		H Casanova	5	6	7				H Casanova	6	6
		N Jarry	3	6	5			5	H Dellien	4	4
	5	H Dellien	6	3	7

	First round							Second round							Quarterfinals							Semifinals
	6	TM Etcheverry	6	64	4
		N Kicker	4	77	6				N Kicker	77	78
		JP Ficovich	6	3					JP Ficovich	65	66
		O Luz	4	0r												N Kicker	63	4
		P Cachin	7	7												P Cachin	77	6
	WC	M Alves	5	5					P Cachin	3	6	77
		Gilbert Klier Júnior	6	77					G Klier Júnior	6	3	65
	Q	A Gómez	3	64																			P Cachin	3	77	3
	7	T Seyboth Wild	77	6																		2	J Munar	6	62	6
		F Díaz Acosta	61	3				7	T Seyboth Wild	77	5	4
	Q	B Bobrov	3	63					N Álvarez Varona	64	7	2r
		N Álvarez Varona	6	77											7	T Seyboth Wild	1	6	4
	Q	T Lipovšek Puches	1	0											2	J Munar	6	3	6
		S Rodríguez Taverna	6	6					S Rodríguez Taverna	6	2	1
	Alt	A González	2	6	3			2	J Munar	4	6	6
	2	J Munar	6	3	6

• Main draw
• Qualifying draw