Women's singles
2023 Championnats Banque Nationale de Granby
Final
Champion	Kayla Day
Runner-up	Katherine Sebov
Score	6–4, 2–6, 7–5
Events
Singles men women Doubles men women
← 2022 · Championnats de Granby · 2024 →

Kayla Day won the women's singles tournament at the 2023 Championnats Banque Nationale de Granby after defeating Katherine Sebov 6–4, 2–6, 7–5 in the final.^[1]

Daria Kasatkina was the defending champion but chose not to defend her title.^[2]

	Semifinals							Final
	1	Rebecca Marino	6	4	2
	5	Katherine Sebov	4	6	6
								5	Katherine Sebov	4	6	5
								3	Kayla Day	6	2	7
	3	Kayla Day	6	4	6
	2	Ashlyn Krueger	3	6	1

	First round							Second round							Quarterfinals							Semifinals
	1	R Marino	77	6
	Q	R Verma	63	1				1	R Marino	6	6
	Q	E Cayetano	0	0					J Failla	2	0
		J Failla	6	6											1	R Marino	6	6
		M Stakusic	6	6												M Stakusic	2	4
	Q	A Akli	4	0					M Stakusic	6	6
	Q	A Markham	6	2	6			Q	A Markham	2	0
	7	K Scott	3	6	1																	1	R Marino	6	4	2
	4	E Bektas	6	6																		5	K Sebov	4	6	6
		V Hu	3	3				4	E Bektas	77	6
		M Jones	77	0	6				M Jones	62	4
	WC	M Kupres	64	6	3										4	E Bektas	2r
	Q	C Corley	4	5											5	K Sebov	3
	WC	A Xu	6	7				WC	A Xu	3	63
	Q	S Lý Nguyễn	4	3				5	K Sebov	6	77
	5	K Sebov	6	6

	First round							Second round							Quarterfinals							Semifinals
	8	M Zacarías	1	3
		C Brace	6	6					C Brace	6	6
	Q	AP Neffa de los Ríos	3	2				Q	AP Neffa de los Ríos	1	3
		S Fung	6	1r												C Brace	2	4
	Q	J Daniel	2	6	4										3	K Day	6	6
	WC	B Fernandez	6	4	6			WC	B Fernandez	3	3
		R Zarazúa	4	4				3	K Day	6	6
	3	K Day	6	6																		3	K Day	6	4	6
	6	H Sakatsume	4	6	6																	2	A Krueger	3	6	1
	WC	L Sleeth	6	1	2			6	H Sakatsume	6	77
	PR	J Brady	6	6				PR	J Brady	4	62
		K Okamura	2	3											6	H Sakatsume	4	4
		J Loeb	5	1											2	A Krueger	6	6
		V Mboko	7	6					V Mboko	2	3
		K Cross	3	4				2	A Krueger	6	6
	2	A Krueger	6	6

• Main draw