Amélie Mauresmo defeated Jennifer Capriati in the final, 6–4, 6–1 to win the women's singles tennis title at the 2002 Canadian Open.

Serena Williams was the reigning champion, but withdrew due to a left knee injury.

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

	Quarterfinals							Semifinals							Final
		Fabiola Zuluaga	0	2
	7	Amélie Mauresmo	6	6
								7	Amélie Mauresmo	6	7
								8	Daniela Hantuchová	2	63
		Barbara Schett	3	3
	8	Daniela Hantuchová	6	6
															7	Amélie Mauresmo	6	6
															2	Jennifer Capriati	4	1
	6	Martina Hingis	4	3
	3	Jelena Dokić	6	6
								3	Jelena Dokić	65	0r
								2	Jennifer Capriati	7	4
	5	Justine Henin	6	0	2
	2	Jennifer Capriati	4	6	6

	First round							Second round							Third round							Quarterfinals
								LL	M Tu	3	6	1
		I Tulyaganova	1	2					F Zuluaga	6	2	6
		F Zuluaga	6	6												F Zuluaga	6	6
	Q	S Obata	3	1											Q	V Ruano Pascual	3	2
	WC	A Kournikova	6	6				WC	A Kournikova	5	1
	Q	V Ruano Pascual	6	6				Q	V Ruano Pascual	7	6
	14	A Kremer	1	0																			F Zuluaga	0	2
	10	S Farina Elia	6	7																		7	A Mauresmo	6	6
	WC	M Drake	2	5				10	S Farina Elia	2	1
	Q	L Granville	6	6				Q	L Granville	6	6
		A Sánchez Vicario	2	2											Q	L Granville	67	65
		C Torrens Valero	7	2	6										7	A Mauresmo	7	7
	Q	E Callens	63	6	3				C Torrens Valero	1	2
								7	A Mauresmo	6	6

	First round							Second round							Third round							Quarterfinals
								4	K Clijsters	6	3	6
	Q	T Poutchek	1	3					N Pratt	4	6	1
		N Pratt	6	6											4	K Clijsters	4	4
	Q	M Irvin	6	3	4											B Schett	6	6
		B Schett	1	6	6				B Schett	6	6
		T Panova	1	3				16	C Rubin	4	4
	16	C Rubin	6	6																			B Schett	3	3
	9	E Dementieva	6	6																		8	D Hantuchová	6	6
		A Serra Zanetti	3	4				9	E Dementieva	3	3
		A Coetzer	6	6					A Coetzer	6	6
	Q	C Black	2	2												A Coetzer	1	3
		P Schnyder	7	7											8	D Hantuchová	6	6
		E Likhovtseva	64	5					P Schnyder	3	63
								8	D Hantuchová	6	7

	First round							Second round							Third round							Quarterfinals
								6	M Hingis	6	6
	Q	M Serna	6	2	6			Q	M Serna	4	3
	Q	R Neffa-de los Ríos	3	6	2										6	M Hingis	6	6
		I Majoli	3	1												C Fernández	4	2
		N Dechy	6	6					N Dechy	3	6	4
		C Fernández	6	6					C Fernández	6	4	6
	11	A Myskina	3	1																		6	M Hingis	4	3
	13	A Smashnova	2	64																		3	J Dokić	6	6
		A Stevenson	6	7					A Stevenson	6	5	6
		T Tanasugarn	6	6					T Tanasugarn	3	7	4
		T Pisnik	0	1												A Stevenson	6	5	1
		M Suchá	6	6											3	J Dokić	1	7	6
		J Husárová	2	2					M Suchá	3	4
								3	J Dokić	6	6

	First round							Second round							Third round							Quarterfinals
								5	J Henin	5	6	4
	Q	N Nagyová	7	64	7			Q	N Nagyová	7	0	1 r
	WC	M Pierce	67	7	5										5	J Henin	6	7
	LL	F Schiavone	610	6	6										LL	F Schiavone	3	62
		E Daniilidou	7	4	4			LL	F Schiavone	4	6	6
	Q	J Craybas	6	1	4			12	D Bedáňová	6	4	2
	12	D Bedáňová	2	6	6																	5	J Henin	6	0	2
	15	L Raymond	3	1																		2	J Capriati	4	6	6
		A Sugiyama	6	6					A Sugiyama	3	6	6
		P Suárez	6	6					P Suárez	6	4	2
		R Grande	0	4												A Sugiyama	1	5
	Q	S Taylor	6	6											2	J Capriati	6	7
	WC	J Nejedly	1	0				Q	S Taylor	4	1
								2	J Capriati	6	6

• WTA Draw and Qualifying Draw
• ITF Draw and Qualifying Draw