2021 Erste Bank Open – Doubles

Łukasz Kubot and Marcelo Melo were the defending champions,^[1] but Kubot chose not to participate. Melo played alongside Ivan Dodig, but lost in the first round to Feliciano López and Stefanos Tsitsipas.

Doubles
2021 Erste Bank Open
Champions	Juan Sebastián Cabal Robert Farah
Runners-up	Rajeev Ram Joe Salisbury
Score	6–4, 6–2
Draw	16
Seeds	4

Main article: 2021 Erste Bank Open

Juan Sebastián Cabal and Robert Farah won the title, defeating Rajeev Ram and Joe Salisbury in the final, 6–4, 6–2.

Seeds

1. Nikola Mektić / Mate Pavić (quarterfinals)
2. Rajeev Ram / Joe Salisbury (final)
3. John Peers / Filip Polášek (semifinals)
4. Juan Sebastián Cabal / Robert Farah (champions)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

Draw

	First round							Quarterfinals							Semifinals							Final
	1	N Mektić M Pavić	6	6
		T Pütz M Venus	4	4				1	N Mektić M Pavić	6	62	[9]
		N Mahut F Martin	64	3				LL	S Gillé D Koepfer	3	77	[11]
	LL	S Gillé D Koepfer	77	6											LL	S Gillé D Koepfer	6	3	[8]
	4	JS Cabal R Farah	4	6	[10]										4	JS Cabal R Farah	3	6	[10]
	PR	W Koolhof J-J Rojer	6	3	[8]			4	JS Cabal R Farah	77	67	[10]
		I Dodig M Melo	3	6	[8]			WC	F López S Tsitsipas	65	79	[8]
	WC	F López S Tsitsipas	6	3	[10]																	4	JS Cabal R Farah	6	6
	Q	A Erler L Miedler	3	5																		2	R Ram J Salisbury	4	2
	WC	O Marach P Oswald	6	7				WC	O Marach P Oswald	77	3	[4]
		J Melzer A Zverev	63	5				3	J Peers F Polášek	64	6	[10]
	3	J Peers F Polášek	77	7											3	J Peers F Polášek	6	62	[7]
		F Auger-Aliassime A Mies	6	6											2	R Ram J Salisbury	3	77	[10]
		D Evans N Skupski	4	3					F Auger-Aliassime A Mies	3	79	[6]
		L Harris H Tecău	3	0				2	R Ram J Salisbury	6	67	[10]
	2	R Ram J Salisbury	6	6

Qualifying

Seeds

1. Simone Bolelli / Máximo González (first round)
2. Sander Gillé / Dominik Koepfer (qualifying competition, lucky losers)

Qualifiers

1. Alexander Erler / Lucas Miedler

Lucky losers

1. Sander Gillé / Dominik Koepfer

Qualifying draw

	First round							Qualifying competition
	1	Simone Bolelli Máximo González	3	2
	WC	Alexander Erler Lucas Miedler	6	6
								WC	Alexander Erler Lucas Miedler	7	6
								2	Sander Gillé Dominik Koepfer	5	4
		André Göransson David Pel	3	3
	2	Sander Gillé Dominik Koepfer	6	6