2021 Sibiu Open – Doubles

Doubles
2021 Sibiu Open
Champions	Alexander Erler Lucas Miedler
Runners-up	James Cerretani Luca Margaroli
Score	6–3, 6–1

Hunter Reese and Jan Zieliński were the defending champions^[1] but chose not to defend their title.

Alexander Erler and Lucas Miedler won the title after defeating James Cerretani and Luca Margaroli 6–3, 6–1 in the final.

	First round							Quarterfinals							Semifinals							Final
	1	J Cerretani L Margaroli	4
		Elmar Ejupovic E Kırkın	2r					1	J Cerretani L Margaroli	3	6	[10]
		O Krutykh David Poljak	w/o						O Krutykh D Poljak	6	0	[6]
		A Vatutin Kai Wehnelt													1	J Cerretani L Margaroli	6	5	[10]
	4	VV Cornea Pe Tsitsipas	w/o													G Blancaneaux A Kadhe	4	7	[7]
		U Ignatik ND Ionel						4	VV Cornea Pe Tsitsipas	5	2
		Yan Bondarevskiy O Prihodko	79	5	[9]				G Blancaneaux A Kadhe	7	6
		G Blancaneaux A Kadhe	67	7	[11]																	1	J Cerretani L Margaroli	3	1
		DN Mădăraș D Petrović																				2	A Erler L Miedler	6	6
		R Albot M Copil	w/o						R Albot M Copil	4	2
		A Jecan FC Jianu	5	2				3	R Gonzales H Johnson	6	6
	3	R Gonzales H Johnson	7	6											3	R Gonzales H Johnson	3	5
	WC	Vlad Andrei Dancu Sebastian Gima	77	2	[10]										2	A Erler L Miedler	6	7
	WC	Bogdan Ionuț Apostol N Frunză	62	6	[7]			WC	VA Dancu S Gima	5	2
	WC	Ștefan Paloși Marc Popescu	0	3				2	A Erler L Miedler	7	6
	2	A Erler L Miedler	6	6

• Main draw