2011 Australian Open – Boys' singles

Tiago Fernandes was the defending champion, having defeated Sean Berman in the 2010 final. He chose not to defend his title. Jiří Veselý won the title defeating Luke Saville 6–0, 6–3, in the final. The player from Czech Republic won every match in straight sets.

Seeds
• # 🇨🇿 Jiří Veselý (champion)

• # 🇦🇹 Dominic Thiem (second round)

• # Mate Pavić (first round)

• # 🇬🇧 George Morgan (semifinals)

• # 🇧🇪 Joris De Loore (first round)

• # 🇪🇸 Roberto Carballes (semifinals)

• # 🇦🇺 Ben Wagland (first round)

• # Jeson Patrombon (quarterfinals)

• # 🇧🇷 Bruno Sant'anna (second round)

• # 🇦🇺 Andrew Whittington (third round)

• # 🇸🇰 Filip Horanský (first round)

• # Dimitri Bretting (first round)

• # 🇷🇸 Nikola Milojević (third round)

• # Mate Delić (third round)

• # 🇦🇺 Sean Berman (third round)

• # 🇨🇿 Lukáš Vrňák (first round)

Note: Bruno Sant'anna forgot to apply for a place in the tournament. He was given a wild card for the qualification round through which he qualified for the tournament.