Barbora Krejčíková and Kateřina Siniaková defeated the defending champion Demi Schuurs and her partner Anna-Lena Grönefeld in the final, 7–5, 6–0 to win the women's doubles tennis title at the 2019 Canadian Open.

Ashleigh Barty and Schuurs were the defending champions, but chose not to participate together. Barty partnered Victoria Azarenka, but lost in the semifinals to Krejčíková and Siniaková.

The top four seeds received byes into the second round.

	Semifinals							Final
	1	Barbora Krejčíková Kateřina Siniaková	3	6	[10]
	6	Victoria Azarenka Ashleigh Barty	6	3	[4]
								1	Barbora Krejčíková Kateřina Siniaková	7	6
								3	Anna-Lena Grönefeld Demi Schuurs	5	0
	3	Anna-Lena Grönefeld Demi Schuurs	6	6
	2	Gabriela Dabrowski Xu Yifan	0	3

	First round							Second round							Quarterfinals							Semifinals
								1	B Krejčíková K Siniaková	w/o
		R Olaru Z Yang	6	3	[12]				R Olaru Z Yang
		S Kenin A Sevastova	1	6	[10]										1	B Krejčíková K Siniaková	6	6
	WC	E Bouchard S Fichman	68	3												N Kichenok A Spears	1	1
		N Kichenok A Spears	710	6					N Kichenok A Spears	6	6
		S Peng S Zhang	6	1	[7]			5	H-c Chan L Chan	1	4
	5	H-c Chan L Chan	3	6	[10]																	1	B Krejčíková K Siniaková	3	6	[10]
																						6	V Azarenka A Barty	6	3	[4]
								4	K Flipkens S-w Hsieh	6	77
		E Hozumi M Ninomiya	6	5	[10]				E Hozumi M Ninomiya	3	60
		A Potapova G Voskoboeva	2	7	[4]										4	K Flipkens S-w Hsieh	6	2	[5]
		J Görges Ka Plíšková	7	6											6	V Azarenka A Barty	4	6	[10]
		L Kichenok J Ostapenko	5	0					J Görges Ka Plíšková	1	3
		M Adamczak S Sanders	1	2				6	V Azarenka A Barty	6	6
	6	V Azarenka A Barty	6	6

	First round							Second round							Quarterfinals							Semifinals
	7	N Melichar K Peschke	1	6	[10]
	WC	LA Fernandez S Halep	6	3	[5]			7	N Melichar K Peschke	6	6
		J Brady K Srebotnik	6	6					J Brady K Srebotnik	4	0
		D Krawczyk A Rosolska	2	3											7	N Melichar K Peschke	2	4
		A Guarachi A Muhammad	6	2	[4]										3	A-L Grönefeld D Schuurs	6	6
		S Aoyama K Christian	3	6	[10]				S Aoyama K Christian	4	2
								3	A-L Grönefeld D Schuurs	6	6
																						3	A-L Grönefeld D Schuurs	6	6
	8	L Hradecká A Klepač	65	3																		2	G Dabrowski Y Xu	0	3
		T Babos A Kontaveit	77	6					T Babos A Kontaveit	6	77
		D Jurak MJ Martínez Sánchez	3	6	[12]				D Jurak MJ Martínez Sánchez	2	63
		Y Duan S Zheng	6	3	[10]											T Babos A Kontaveit	77	65	[3]
		M Kato S Santamaria	1	6	[12]										2	G Dabrowski Y Xu	60	77	[10]
	WC	F Abanda C Branstine	6	3	[10]				M Kato S Santamaria	5	2
								2	G Dabrowski Y Xu	7	6

• Main Draw