2021 Serbia Open – Men's doubles

Jonathan Erlich and Andy Ram were the last defending champions after victory in 2012, but Erlich chose not to participate and Ram retired from professional tennis in 2014.

Men's doubles
2021 Serbia Open
Champions	Ivan Sabanov Matej Sabanov
Runners-up	Ariel Behar Gonzalo Escobar
Score	6–3, 7–6(7–5)

Main article: 2021 Serbia Open

Ivan and Matej Sabanov won the title, defeating Ariel Behar and Gonzalo Escobar in the final, 6–3, 7–6^(7–5).

Seeds

1. Nikola Mektić / Mate Pavić (withdrew)
2. Austin Krajicek / Oliver Marach (first round)
3. Raven Klaasen / Ben McLachlan (first round)
4. Marcelo Arévalo / Matwé Middelkoop (first round)

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

Draw

	First round							Quarterfinals							Semifinals							Final
	Alt	A Sitak S Travaglia	2	6	[6]
		A Behar G Escobar	6	3	[10]				A Behar G Escobar	6	7
		J Millman J-P Smith	6	6					J Millman J-P Smith	4	5
		M Demoliner S González	4	3												A Behar G Escobar	6	6
	4	M Arévalo M Middelkoop	4	65												T Brkić N Ćaćić	3	4
		T Brkić N Ćaćić	6	77					T Brkić N Ćaćić	0	79	[10]
	WC	M Kecmanović D Lajović	4	4					S Bolelli M González	6	67	[8]
		S Bolelli M González	6	6																			A Behar G Escobar	3	65
		R Bopanna P Cuevas	1	0r																		WC	I Sabanov M Sabanov	6	77
		A Bedene D Sharan	6	0					A Bedene D Sharan	1	3
	WC	I Sabanov M Sabanov	6	6				WC	I Sabanov M Sabanov	6	6
	3	R Klaasen B McLachlan	4	2											WC	I Sabanov M Sabanov	711	6
		M Berrettini A Vavassori	79	6												M Berrettini A Vavassori	69	3
		A Molteni F Nielsen	67	4					M Berrettini A Vavassori	6	77
		L Bambridge D Inglot	65	79	[10]				L Bambridge D Inglot	4	63
	2	A Krajicek O Marach	77	67	[7]

References

• Main Draw