2021 Bucharest Challenger – Doubles

Doubles
Doubles
2021 Bucharest Challenger
Champions	Ruben Gonzales; Hunter Johnson
Runners-up	Maximilian Marterer; Lukáš Rosol
Score	1–6, 6–2, [10–3]

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

Ruben Gonzales and Hunter Johnson won the title after defeating Maximilian Marterer and Lukáš Rosol 1–6, 6–2, [10–3] in the final.

Seeds

First round					Quarterfinals					Semifinals					Final

1	J Cerretani L Margaroli	7	6
	T Gabashvili G Smits	5	2		1	J Cerretani L Margaroli	6	7¹⁰
	F Cobolli J Ocleppo	7⁹	6			F Cobolli J Ocleppo	4	6⁸
WC	M Copil A Ungur	6⁷	1							1	J Cerretani L Margaroli	3	6	[3]
Alt	U Ignatik DN Mădăraș	5	7	[10]							M Marterer L Rosol	6	3	[10]
	V Kopřiva J Lehečka	7	5	[4]	Alt	U Ignatik DN Mădăraș	6⁴	3
	M Marterer L Rosol	6	6			M Marterer L Rosol	7⁷	6
Alt	G Blancaneaux V Orlov	3	3													M Marterer L Rosol	6	2	[3]
	R Albot A Cozbinov	7⁷	4	[10]											3	R Gonzales H Johnson	1	6	[10]
	J Clarke J Sels	6⁴	6	[4]		R Albot A Cozbinov	3	7⁷	[6]
WC	ND Ionel FC Jianu	1	5		3	R Gonzales H Johnson	6	6²	[10]
3	R Gonzales H Johnson	6	7							3	R Gonzales H Johnson	6	7⁷
PR	A Motti A Vatutin	6	6³	[3]						WC	A Jecan DA Tomescu	4	6⁴
WC	A Jecan Dan Alexandru Tomescu	4	7⁷	[10]	WC	A Jecan DA Tomescu	0	6	[11]
	R Bonadio S Travaglia	3	3		2	A Erler L Miedler	6	4	[9]
2	A Erler L Miedler	6	6