Women's singles
2018 Darwin Tennis International
Champion	Kimberly Birrell
Runner-up	Ellen Perez
Score	6–3, 6–3

Casey Dellacqua was the defending champion having won the previous edition in 2011, however she had retired from professional tennis in April 2018.

Kimberly Birrell won the title, defeating Ellen Perez in an all-Australian final, 6–3, 6–3.

Seeds

Draw

Finals

	Semifinals							Final
		Kimberly Birrell	6	2
	Q	Zuzana Zlochová	4	1r
									Kimberly Birrell	6	6
									Ellen Perez	3	3
		Ellen Perez	6	6
	WC	Naiktha Bains	2	3

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	O Rogowska	6	6
	WC	O Tjandramulia	4	1				1	O Rogowska	6	6
		G Brescia	77	77					G Brescia	3	2
		M Minokoshi	62	64											1	O Rogowska	66	3
		K Birrell	6	6												K Birrell	78	6
		R Ozaki	4	1					K Birrell	6	6
	Q	M Inglis	3	5				8	D Aiava	1	1
	8	D Aiava	6	7																			K Birrell	6	2
	LL	M Zakarlyuk	2	77	2																	Q	Z Zlochová	4	1r
	Q	I Ramialison	6	65	6			Q	I Ramialison	4	6	6
		Z Hives	6	4	6				Z Hives	6	3	3
		H Kuwata	2	6	4										Q	I Ramialison	5	68
		A Myers	63	1											Q	Z Zlochová	7	710
	Q	Z Zlochová	77	6				Q	Z Zlochová	6	6
	Q	K Okamura	6	6				Q	K Okamura	4	0
	6	K Dunne	4	4

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	E Hozumi	4	2
		L Zhang	6	6					L Zhang	1	6	6
		S Xu	6	78					S Xu	6	4	2
		E Sema	2	66												L Zhang	65	3
	WC	A Bai	1	3												E Perez	77	6
		A Sharma	6	6					A Sharma	64	1
		E Perez	6	63	6				E Perez	77	6
	4	J Fourlis	4	77	3																		E Perez	6	6
	5	S-j Jang	2	6	3																	WC	N Bains	2	3
		D Gálfi	6	1	6				D Gálfi	4	3
	WC	N Bains	6	77				WC	N Bains	6	6
		A Tere-Apisah	2	63											WC	N Bains	65	6	77
		H Kaji	6	6												H Kaji	77	1	65
	WC	K McPhee	1	1					H Kaji	6	6
		Y-h Lee	6	6					Y-h Lee	3	3
	2	Ar Rodionova	2	4

References

• Main Draw