2005 Australian Open – Girls' singles

Victoria Azarenka won the title, defeating Ágnes Szávay in the final, 6–2, 6–2. Azarenka would go on to win the women's title in 2012 and 2013.

Shahar Pe'er was the defending champion, but chose to participate in the women's qualifying competition, where she lost to top seed Sesil Karatantcheva in the final round.

Seeds
• # 🇧🇾 Victoria Azarenka (champion)

• # Timea Bacsinszky (semifinals)

• # 🇩🇪 Angelique Kerber (first round)

• # 🇺🇦 Olga Savchuk (third round)

• # Yung-Jan Chan (third round)

• # 🇨🇦 Aleksandra Wozniak (semifinals)

• # 🇷🇴 Monica Niculescu (quarterfinals)

• # 🇸🇰 Dominika Cibulková (third round)

• # 🇳🇿 Marina Erakovic (quarterfinals)

• # Wen-Hsin Hsu (third round)

• # Caroline Wozniacki (third round)

• # 🇭🇺 Ágnes Szávay (final)

• # 🇷🇺 Alisa Kleybanova (third round)

• # 🇸🇰 Magdaléna Rybáriková (first round)

• # 🇺🇸 Jennifer-Lee Heinser (second round)

• # 🇹🇭 Pichittra Thongdach (first round)