Doubles
2021 Belgrade Open
Final
Champions	Jonathan Erlich Andrei Vasilevski
Runners-up	André Göransson Rafael Matos
Score	6–4, 6–1
Events
Singles Doubles
Belgrade Open

This was the first edition of the tournament, primarily created due to the one-week delay of the 2021 French Open.^[1]

Jonathan Erlich and Andrei Vasilevski won the title, defeating André Göransson and Rafael Matos in the final, 6–4, 6–1.

	First round							Quarterfinals							Semifinals							Final
	1	R Bopanna F Škugor	3	6	[8]
		F Delbonis A Sitak	6	4	[10]				F Delbonis A Sitak	2	1
	WC	I Sabanov M Sabanov	4	6	[10]			WC	I Sabanov M Sabanov	6	6
		T Brkić N Ćaćić	6	3	[8]										WC	I Sabanov M Sabanov	3	6	[11]
	3	A Behar G Escobar	7	63	[4]											J Erlich A Vasilevski	6	3	[13]
		S Arends LD Martínez	5	77	[10]				S Arends LD Martínez	3	6	[6]
		J Erlich A Vasilevski	6	4	[10]				J Erlich A Vasilevski	6	0	[10]
		A Molteni F Nielsen	4	6	[3]																		J Erlich A Vasilevski	6	6
		R Carballés Baena F Coria	3	4																			A Göransson R Matos	4	1
		L Bambridge D Inglot	6	6					L Bambridge D Inglot	6	6
	WC	H Međedović M Tepavac	60	6	[9]			4	M Demoliner S González	4	4
	4	M Demoliner S González	77	3	[11]											L Bambridge D Inglot	63	6	[4]
		A Göransson R Matos	6	5	[10]											A Göransson R Matos	77	1	[10]
		D Sharan J-P Smith	4	7	[6]				A Göransson R Matos	6	6
		A Krajicek T Sandgren	6	65	[10]				A Krajicek T Sandgren	1	3
	2	F Martin H Nys	3	77	[8]

• Main Draw