Singles
2019 Fukuoka International Women's Cup
Champion	Heather Watson
Runner-up	Zarina Diyas
Score	7–6(7–1), 7–6(7–4)

Katie Boulter was the defending champion, but chose not to participate.^[1]

Heather Watson won the title, defeating Zarina Diyas in the final, 7–6^(7–1), 7–6^(7–4).

Seeds

Draw

Finals

	Semifinals							Final
	1	Zarina Diyas	6	6
	6	Rebecca Marino	2	3
								1	Zarina Diyas	61	64
								2	Heather Watson	77	77
	4	Kristie Ahn	3	2r
	2	Heather Watson	6	2

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	Z Diyas	5	6	6
		A Bai	7	3	2			1	Z Diyas	6	6
	WC	M Ayukawa	6	3	6			WC	M Ayukawa	1	0
		H Kaji	4	6	2										1	Z Diyas	6	6
	WC	M Uchijima	4	2												R Ozaki	0	2
		B Cengiz	6	6					B Cengiz	3	3
		R Ozaki	6	67	6				R Ozaki	6	6
	8	J Loeb	1	79	2																	1	Z Diyas	6	6
	3	A Shimizu	4	77	6																	6	R Marino	2	3
	WC	Y Naito	6	65	3			3	A Shimizu	2	7	6
		M Inglis	4						M Inglis	6	5	4
		K Dunne	3r												3	A Shimizu	3	4
	Q	S Akita	6	2	6										6	R Marino	6	6
		S-j Jang	4	6	3			Q	S Akita	5	63
	Q	M Hontama	1	1				6	R Marino	7	77
	6	R Marino	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	M Kobori	6	3	6
		K McPhee	4	6	3			7	M Kobori	66	1
	Q	E Shibahara	4	3				Q	E Bektas	78	6
	Q	E Bektas	6	6											Q	E Bektas	4	6	0
	WC	K Morisaki	2	5											4	K Ahn	6	3	6
		J Jakšić	6	7					J Jakšić	3	4
		E Hozumi	1	5				4	K Ahn	6	6
	4	K Ahn	6	7																		4	K Ahn	3	2r
	5	E-s Liang	65	7	6																	2	H Watson	6	2
		M Imanishi	77	5	2			5	E-s Liang	6	6
		N Broady	6	78					N Broady	3	3
		J Namigata	3	66											5	E-s Liang	2	2
	Q	L Küng	6	6											2	H Watson	6	6
		H Kuwata	3	2				Q	L Küng	2	4
	Q	H Sakatsume	2	1				2	H Watson	6	6
	2	H Watson	6	6

References

• Main Draw