2013 Apia International Sydney – Women's singles

Victoria Azarenka was the defending champion, but chose not to participate this year.

Agnieszka Radwańska won the title, defeating Dominika Cibulková in the final, 6–0, 6–0. This was only the eighth WTA singles final to be won with a 6–0, 6–0 (a "double bagel") scoreline in history, and the first since Marion Bartoli won the 2006 Challenge Bell.

Seeds
• # 🇵🇱 Agnieszka Radwańska (champion)

• # 🇩🇪 Angelique Kerber (semifinals)

• # 🇮🇹 Sara Errani (quarterfinals)

• # 🇨🇳 Li Na (semifinals)

• # 🇨🇿 Petra Kvitová (first round)

• # 🇦🇺 Samantha Stosur (first round)

• # Caroline Wozniacki (second round)

• # 🇷🇺 Nadia Petrova (first round)

Seeds
• # 🇩🇪 Sabine Lisicki (withdrew because of a virus)

• # 🇸🇪 Sofia Arvidsson (qualifying competition)

• # 🇨🇿 Lucie Hradecká (second round)

• # Anna Tatishvili (qualifying competition)

• # Kiki Bertens (first round)

• # 🇨🇿 Andrea Hlaváčková (second round)

• # 🇫🇷 Pauline Parmentier (first round)

• # 🇳🇿 Marina Erakovic (qualifying competition)

• # 🇺🇸 Vania King (second round)

• # 🇺🇸 Jamie Hampton (withdrew; was still competing in Auckland)

• # 🇷🇺 Svetlana Kuznetsova (qualified)

• # Arantxa Rus (first round)

• # 🇸🇪 Johanna Larsson (second round)

Qualifiers
• # 🇨🇿 Karolína Plíšková

• # 🇰🇿 Galina Voskoboeva

• # 🇯🇵 Ayumi Morita

• # 🇯🇵 Kimiko Date-Krumm

• # 🇺🇸 Madison Keys

• # 🇷🇺 Svetlana Kuznetsova