2021 Kremlin Cup – Women's doubles

Women's doubles
2021 Kremlin Cup
Champions	Jeļena Ostapenko Kateřina Siniaková
Runners-up	Nadiia Kichenok Raluca Olaru
Score	6–2, 4–6, [10–8]

Shuko Aoyama and Ena Shibahara were the defending champions, having won the previous event in 2019,^[1] but chose not to participate.

Jeļena Ostapenko and Kateřina Siniaková won the title, defeating Nadiia Kichenok and Raluca Olaru in the final, 6–2, 4–6, [10–8].^[2] Ostapenko and Siniaková won the title after saving three match points in their quarterfinal match against Viktória Kužmová and Alexandra Panova. This was the first time that Siniaková won a doubles title without regular partner Barbora Krejčíková since January 2019.^[3]

	First round							Quarterfinals							Semifinals							Final
	1	A Guarachi D Krawczyk	3	1
		E Alexandrova Y Sizikova	6	6					E Alexandrova Y Sizikova	1	6	[7]
	WC	O Selekhmeteva A Tikhonova	4	7	[8]				N Dzalamidze K Rakhimova	6	4	[10]
		N Dzalamidze K Rakhimova	6	5	[10]											N Dzalamidze K Rakhimova	5	5
	4	N Kichenok R Olaru	0	6	[10]										4	N Kichenok R Olaru	7	7
		T Martincová M Vondroušová	6	2	[4]			4	N Kichenok R Olaru	5
		K Christian E Routliffe	4	0					A Kalinskaya A Potapova	2r
		A Kalinskaya A Potapova	6	6																		4	N Kichenok R Olaru	2	6	[8]
		E Lechemia S Santamaria	1	6	[7]																	2	J Ostapenko K Siniaková	6	4	[10]
		O Kalashnikova M Kato	6	4	[10]				O Kalashnikova M Kato	4	2
		A Danilina Ar Rodionova	1	1				3	M Bouzková L Hradecká	6	6
	3	M Bouzková L Hradecká	6	6											3	M Bouzková L Hradecká	2	7	[2]
		V Kužmová A Panova	7	6											2	J Ostapenko K Siniaková	6	5	[10]
		V Diatchenko M Niculescu	5	2					V Kužmová A Panova	7	3	[9]
	PR	V Lapko L Marozava	3	2				2	J Ostapenko K Siniaková	5	6	[11]
	2	J Ostapenko K Siniaková	6	6

• Main Draw