2021 Western & Southern Open – Men's doubles

Pablo Carreño Busta and Alex de Minaur were the defending champions, but Carreño Busta chose not to defend his title and de Minaur played alongside Cameron Norrie instead. They lost in the quarterfinals to Marcel Granollers and Horacio Zeballos.

Men's doubles
2021 Western & Southern Open
Champions	Marcel Granollers Horacio Zeballos
Runners-up	Steve Johnson Austin Krajicek
Score	7–6(7–5), 7–6(7–5)
Draw	28 (3 WC )
Seeds	8

Main article: 2021 Western & Southern Open

Granollers and Zeballos went on to win the title, defeating Steve Johnson and Austin Krajicek in the final, 7–6^(7–5), 7–6^(7–5).

Seeds

The top four seeds received a bye into the second round.

1. Nikola Mektić / Mate Pavić (second round)
2. Marcel Granollers / Horacio Zeballos (champions)
3. Juan Sebastián Cabal / Robert Farah (semifinals)
4. Rajeev Ram / Joe Salisbury (quarterfinals)
5. Kevin Krawietz / Horia Tecău (second round)
6. John Peers / Filip Polášek (second round)
7. Łukasz Kubot / Marcelo Melo (first round)
8. Raven Klaasen / Ben McLachlan (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

Finals

	Semifinals							Final
	WC	Steve Johnson Austin Krajicek	77	68	[10]
	3	Juan Sebastián Cabal Robert Farah	65	710	[3]
								WC	Steve Johnson Austin Krajicek	65	65
								2	Marcel Granollers Horacio Zeballos	77	77
	Alt	Marcelo Arévalo Fabio Fognini	3	4
	2	Marcel Granollers Horacio Zeballos	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	N Mektić M Pavić	79	5	[5]
		D Evans N Skupski	3	6	[3]				H Hurkacz J Sinner	67	7	[10]
		H Hurkacz J Sinner	6	3	[10]											H Hurkacz J Sinner	3	1
	WC	S Johnson A Krajicek	7	7											WC	S Johnson A Krajicek	6	6
		F Auger-Aliassime M Daniell	5	5				WC	S Johnson A Krajicek	6	6
		A Behar G Escobar	4	6	[10]				A Behar G Escobar	3	4
	8	R Klaasen B McLachlan	6	3	[8]																	WC	S Johnson A Krajicek	77	68	[10]
																						3	JS Cabal R Farah	65	710	[3]
								3	JS Cabal R Farah	77	6
		F Krajinović F Martin	1	6	[10]				F Krajinović F Martin	63	4
		R Bopanna I Dodig	6	4	[7]										3	JS Cabal R Farah	6	6
		S Gillé J Vliegen	4	63												T Pütz M Venus	4	4
		W Koolhof J-L Struff	6	77					W Koolhof J-L Struff	5	3
		T Pütz M Venus	6	6					T Pütz M Venus	7	6
	7	Ł Kubot M Melo	2	3

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	K Krawietz H Tecău	7	6
		F Delbonis D Schwartzman	5	3				5	K Krawietz H Tecău	6	5	[7]
	Alt	M Arévalo F Fognini	7	65	[11]			Alt	M Arévalo F Fognini	3	7	[10]
	Alt	A Karatsev D Lajović	5	77	[9]										Alt	M Arévalo F Fognini	6	77
		A Golubev A Mies	65	5											4	R Ram J Salisbury	4	65
	WC	N Monroe F Tiafoe	77	7				WC	N Monroe F Tiafoe	615	2
								4	R Ram J Salisbury	717	6
																						Alt	M Arévalo F Fognini	3	4
	6	J Peers F Polášek	64	77	[10]																	2	M Granollers H Zeballos	6	6
		M Middelkoop L Saville	77	62	[6]			6	J Peers F Polášek	6	3	[8]
		A Bublik C Garín	2	2					A de Minaur C Norrie	3	6	[10]
		A de Minaur C Norrie	6	6												A de Minaur C Norrie	3	4
		S Bolelli M González	78	3	[9]										2	M Granollers H Zeballos	6	6
		K Khachanov A Rublev	66	6	[11]				K Khachanov A Rublev	67	5
								2	M Granollers H Zeballos	79	7

External links

• Main draw