The women's doubles was one of five events at the 1921 World Hard Court Championships. Dorothy Holman and Phyllis Satterthwaite were the title holders. Holman paired with Irene Peacock this year, but lost to Germaine Golding and Suzanne Lenglen 6–2, 6–2 in the final.

	1st round							2nd round							Semifinals							Finals
	Germaine Golding Suzanne Lenglen		6	6
	Molla Mallory Edith Sigourney		4	1				Germaine Golding Suzanne Lenglen		6	6
	Marguerite Billout Daisy Speranza							Marguerite Billout Daisy Speranza		1	0
	?														Germaine Golding Suzanne Lenglen		6	6
	?														Genevieve Cousin Suzanne Devé		1	0
	Genevieve Cousin Suzanne Devé							Genevieve Cousin Suzanne Devé		6	2	6
	?							Marie Conquet Marie Danet		2	6	4
	Marie Conquet Marie Danet																					Germaine Golding Suzanne Lenglen		6	6
	Miss Lammin Nanette le Besnerais																					Dorothy Holman Irene Peacock		2	2
	?							Miss Lammin Nanette le Besnerais
	?							?
	?														Miss Lammin Nanette le Besnerais		2	4
	?														Dorothy Holman Irene Peacock		6	6
	Anne de Borman Marie Storms							Anne de Borman Marie Storms		6	4	6
	?							Dorothy Holman Irene Peacock		2	6	8
	Dorothy Holman Irene Peacock