2018 Australian Open – Girls' singles

Liang En-shuo won the girls' singles title at the 2018 Australian Open, defeating Clara Burel in the final, 6–3, 6–4.

Marta Kostyuk was the defending champion, but withdrew as she was still competing in the women's tournament.

Seeds
• # 🇨🇳 Wang Xinyu (semifinals)

• # Liang En-shuo (champion)

• # Simona Waltert (first round)

• # 🇦🇷 María Lourdes Carlé (first round)

• # 🇯🇵 Naho Sato (quarterfinals)

• # Joanna Garland (second round)

• # 🇺🇸 Alexa Noel (third round)

• # Nika Radišić (first round)

• # 🇨🇳 Wang Xiyu (quarterfinals)

• # Lulu Sun (third round)

• # 🇯🇵 Yuki Naito (second round)

• # 🇺🇸 Elysia Bolton (third round)

• # Daniela Vismane (quarterfinals)

• # 🇨🇳 Zheng Qinwen (first round)

• # 🇫🇷 Yasmine Mansouri (first round)

• # 🇷🇺 Kamilla Rakhimova (third round)

Seeds
• # 🇳🇿 Valentina Ivanov (qualifying competition)

• # 🇯🇵 Sakura Hosogi (qualified)

• # 🇯🇵 Anri Nagata (qualified)

• # 🇯🇵 Ayumi Miyamoto (first round)

• # 🇨🇳 Wang Jiaqi (qualifying competition)

• # 🇺🇸 Niluka Madurawe (qualified)

• # 🇯🇵 Moyuka Uchijima (qualified)

• # 🇯🇵 Rina Saigo (qualifying competition)

• # 🇫🇷 Giulia Morlet (first round)

• # 🇮🇳 Akanksha Bhan (qualified)

• # 🇮🇹 Lisa Piccinetti (qualifying competition, retired)

• # Zoziya Kardava (first round)

• # 🇸🇪 Melis Yasar (first round)

• # 🇭🇰 Cody Wong Hong-yi (qualified)

• # 🇯🇵 Funa Kozaki (qualifying competition)

• # Hannah Viller Møller (qualified)

Qualifiers
• # 🇭🇰 Cody Wong Hong-yi

• # 🇯🇵 Sakura Hosogi

• # 🇯🇵 Anri Nagata

• # Hannah Viller Møller

• # 🇯🇵 Himeno Sakatsume

• # 🇺🇸 Niluka Madurawe

• # 🇯🇵 Moyuka Uchijima

• # 🇮🇳 Akanksha Bhan

Lucky loser
• # Myah Petchey