2013 Australian Open – Boys' singles

Nick Kyrgios defeated Thanasi Kokkinakis in the final, 7–6(7–4), 6–3 to win the boys' singles tennis title at the 2013 Australian Open.

Luke Saville was the reigning champion, but was ineligible to play in junior events.

Seeds
• # 🇷🇸 Nikola Milojević (quarterfinals)

• # 🇮🇹 Gianluigi Quinzi (quarterfinals)

• # 🇦🇺 Nick Kyrgios (champion)

• # 🇷🇸 Laslo Djere (first round)

• # 🇸🇪 Elias Ymer (first round)

• # 🇰🇷 Chung Hyeon (third round)

• # Wayne Montgomery (quarterfinals)

• # 🇮🇹 Filippo Baldi (semifinals)

• # Christian Garín (third round)

• # 🇩🇪 Maximilian Marterer (second round)

• # Borna Ćorić (semifinals)

• # 🇺🇸 Thai-Son Kwiatkowski (first round)

• # 🇺🇸 Mackenzie McDonald (second round)

• # 🇯🇵 Yoshihito Nishioka (third round)

• # 🇰🇷 Hong Seong-chan (first round)

• # 🇨🇦 Hugo Di Feo (third round)