Liang En-shuo and Wang Xinyu won the girls' doubles tennis title at the 2018 Australian Open, defeating Violet Apisah and Lulu Sun in the final, 7–6^(7–4), 4–6, [10–5].^[1][2]

Bianca Andreescu and Carson Branstine were the defending champions, but both players chose not to participate.

	Semifinals							Final
	1	Liang En-shuo Wang Xinyu	4	6	[10]
	3	Yuki Naito Naho Sato	6	3	[7]
								1	Liang En-shuo Wang Xinyu	77	4	[10]
								7	Violet Apisah Lulu Sun	64	6	[5]
	7	Violet Apisah Lulu Sun	0	6	[10]
	2	Simona Waltert Wang Xiyu	6	3	[7]

	First round							Second round							Quarterfinals							Semifinals
	1	Liang En-shuo Wang Xinyu	7	6
	WC	Zara Brankovic Annerly Poulos	5	3				1	E-s Liang Xin Wang	6	6
		Alina Charaeva Kamilla Rakhimova	6	6					A Charaeva K Rakhimova	2	3
		Daria Frayman Ana Makatsaria	2	3											1	E-s Liang Xin Wang	77	6
		Mariam Dalakishvili Zoziya Kardava	6	2	[3]											D Hewitt P Stearns	65	3
		Dalayna Hewitt Peyton Stearns	2	6	[10]				D Hewitt P Stearns	6	6
		Diae El Jardi Gemma Heath	2	1				6	G Topalova D Vismane	3	0
	6	Gergana Topalova Daniela Vismane	6	6																		1	E-s Liang Xin Wang	4	6	[10]
	3	Yuki Naito Naho Sato	6	6																		3	Y Naito N Sato	6	3	[7]
		Yasmine Mansouri Diane Parry	1	4				3	Y Naito N Sato	77	6
		Karolína Beránková Ania Hertel	6	2	[3]				V Morvayová N Radišić	62	3
		Viktória Morvayová Nika Radišić	1	6	[10]										3	Y Naito N Sato	7	4	[11]
		Ali Collins Stefania Rogozińska Dzik	3	6	[8]										WC	G Da Silva-Fick I Popovic	5	6	[9]
	WC	Gabriella Da Silva-Fick Ivana Popovic	6	4	[10]			WC	G Da Silva-Fick I Popovic	77	6
		Valentina Ivanov Cody Wong Hong-yi	6	6					V Ivanov CH-y Wong	65	4
	5	María Lourdes Carlé Layne Sleeth	4	1

	First round							Second round							Quarterfinals							Semifinals
	7	Violet Apisah Lulu Sun	6	7
		Hurricane Tyra Black Coco Gauff	4	5				7	V Apisah L Sun	6	6
		Anri Nagata Moyuka Uchijima	5	6	[7]				E Cocciaretto S Nahimana	4	2
		Elisabetta Cocciaretto Sada Nahimana	7	2	[10]										7	V Apisah L Sun	77	6
	WC	Amber Marshall Lisa Mays	4	3												L Bencheikh M Kawamura	60	2
		Park So-hyun Mananchaya Sawangkaew	6	6					S-h Park M Sawangkaew	4	4
		Loudmilla Bencheikh Mana Kawamura	0	6	[10]				L Bencheikh M Kawamura	6	6
	4	Viktoriia Dema Marta Kostyuk	6	4	[5]																	7	V Apisah L Sun	0	6	[10]
	8	Clara Burel Zheng Qinwen	4	77	[11]																	2	S Waltert Xiy Wang	6	3	[7]
		Oona Orpana Draginja Vuković	6	62	[9]			8	C Burel Q Zheng	3	0
		Joanna Garland Himari Sato	4	4				WC	O Gadecki M Smith	6	6
	WC	Olivia Gadecki Megan Smith	6	6											WC	O Gadecki M Smith	3	60
		Elysia Bolton Nicole Mossmer	7	2	[3]										2	S Waltert Xiy Wang	6	77
		Alexa Noel Rina Saigo	5	6	[10]				A Noel R Saigo	2	3
		Akanksha Bhan Sakura Hosogi	1	62				2	S Waltert Xiy Wang	6	6
	2	Simona Waltert Wang Xiyu	6	77

• Main Draw