2023 Australian Open – Girls' singles

Petra Marčinko was the defending champion but decided to participate in the women's singles qualifying, where she lost to CoCo Vandeweghe in the second round.

Alina Korneeva won the title, defeating Mirra Andreeva in the final, 6–7(2–7), 6–4, 7–5.

Seeds
• 🇯🇵 Sara Saito (first round)

• 🇨🇿 Tereza Valentová (quarterfinals)

• 🇬🇧 Ella McDonald (first round)

• 🇸🇰 Nikola Daubnerová (first round)

• 🇦🇷 Luciana Moyano (first round)

• 🇯🇵 Mayu Crossley (first round)

• Mirra Andreeva (final)

• 🇸🇰 Nina Vargová (third round)

•  Alina Korneeva (champion)

• 🇭🇺 Luca Udvardy (first round)

• 🇯🇵 Ena Koike (third round)

• 🇯🇵 Sayaka Ishii (semifinals)

• 🇬🇧 Ranah Akua Stoiber (semifinals)

• 🇫🇷 Yaroslava Bartashevich (third round)

• 🇸🇰 Renáta Jamrichová (quarterfinals)

• 🇯🇵 Hayu Kinoshita (third round)

Seeds
• # 🇷🇴 Mara Gae (qualifying competition)

• # 🇳🇿 Vivian Yang (qualified)

• # 🇧🇬 Elizara Yaneva (qualifying competition, lucky loser)

• # 🇨🇳 Zhao Yi-chen (qualifying competition)

• # 🇮🇹 Francesca Pace (qualified)

• # 🇰🇷 Choi On-yu (qualified)

• # 🇰🇷 Kim Yu-jin (qualifying competition)

• # 🇨🇦 Ellie Daniels (qualified)

• # 🇮🇹 Anna Paradisi (first round)

• # Rebecca Munk Mortensen (qualified)

• # 🇷🇴 Maria Daciana Ciubotaru (qualified)

• # 🇬🇧 Imogen Haddad (qualifying competition)

• # 🇮🇹 Lavinia Morreale (qualified)

• # 🇦🇺 Roisin Gilheany (qualifying competition)

• # 🇳🇴 Emily Sartz-Lunde (first round)

• # 🇺🇸 Martina Marica (first round)

Qualifiers
• # Kristiana Sidorova

• # 🇳🇿 Vivian Yang

• # 🇮🇹 Lavinia Morreale

• # Rebecca Munk Mortensen

• # 🇮🇹 Francesca Pace

• # 🇰🇷 Choi On-yu

• # 🇷🇴 Maria Daciana Ciubotaru

• # 🇨🇦 Ellie Daniels

Lucky loser

 * 1) 🇧🇬 Elizara Yaneva