2013 French Open – Boys' singles

Kimmer Coppejans was the 2012 champion, but was no longer eligible to compete in junior tennis, and thus could not defend his title. Cristian Garín defeated Alexander Zverev, 6–4, 6–1 in the final to win the title.

Seeds
• # 🇦🇺 Nick Kyrgios (second round)

• # 🇷🇸 Nikola Milojević (semifinals)

• # 🇷🇸 Laslo Đere (third round)

• # 🇩🇪 Alexander Zverev (final)

• # 🇬🇧 Kyle Edmund (quarterfinals)

• # 🇮🇹 Gianluigi Quinzi (quarterfinals)

• # 🇮🇹 Filippo Baldi (second round)

• # Borna Ćorić (semifinals)

• # 🇫🇷 Maxime Hamou (first round)

• # 🇧🇪 Clément Geens (first round)

• # 🇫🇷 Johan-Sébastien Tatlot (third round)

• # Wayne Montgomery (first round)

• # Guillermo Núñez (quarterfinals)

• # Frederico Ferreira Silva (second round)

• # 🇬🇧 Cameron Norrie (first round)

• # Nicolás Jarry (first round)

Qualifiers
• # 🇮🇹 Stefano Napolitano (second round)

• # 🇯🇵 Takashi Saito (first round)

• # 🇪🇸 Albert Alcaraz Ivorra (third round)

• # 🇦🇺 Jay Andrijic (first round)

• # 🇧🇷 Rafael Matos (first round)

• # 🇮🇹 Matteo Donati (second round)

• # 🇷🇴 Luca George Tatomir (second round)

• # Simon Friis Søndergaard (first round)