2019 French Open – Boys' singles

Holger Rune won the boys' singles tennis title at the 2019 French Open, defeating Toby Kodat in the final, 6–3, 6–7(5–7), 6–0.

Tseng Chun-hsin was the defending champion, but chose not to participate.

Seeds
• 🇮🇹 Lorenzo Musetti (third round)

• 🇨🇿 Jonáš Forejtek (third round)

• 🇺🇸 Brandon Nakashima (third round)

• 🇧🇬 Adrian Andreev (third round, retired)

• 🇦🇷 Thiago Agustín Tirante (third round)

• 🇺🇸 Emilio Nava (second round)

• Holger Rune (champion)

• 🇨🇳 Bu Yunchaokete (second round)

• 🇫🇮 Otto Virtanen (first round)

• 🇺🇸 Martin Damm (semifinals)

• 🇨🇦 Liam Draxl (first round)

• 🇮🇹 Giulio Zeppieri (second round, retired)

• 🇪🇸 Carlos Alcaraz (first round)

• 🇯🇵 Shunsuke Mitsui (first round)

• 🇷🇴 Filip Jianu (quarterfinals, retired)

• 🇦🇺 Rinky Hijikata (first round)

Seeds
• # 🇭🇺 Péter Makk (qualified)

• # 🇦🇷 Alejo Lorenzo Lingua Lavallén (qualified)

• # 🇦🇺 Tristan Schoolkate (qualifying competition)

• # 🇷🇴 Nicholas David Ionel (qualifying competition)

• # Stijn Pel (qualifying competition)

• # 🇬🇧 Harry Wendelken (first round)

• # Nguyễn Văn Phương (first round)

• # 🇧🇾 Alexander Zgirovsky (qualifying competition)

• # 🇦🇷 Román Andrés Burruchaga (qualified)

• # 🇨🇮 Eliakim Coulibaly (first round)

• # 🇺🇸 Dali Blanch (qualified)

• # 🇺🇸 William Grant (qualified)

• # 🇬🇧 Blu Baker (first round)

• # 🇷🇴 Cezar Crețu (first round)

• # 🇺🇸 Jacob Bullard (first round)

• # 🇨🇿 Andrew Paulson (qualifying competition)

Qualifiers
• # 🇭🇺 Péter Makk

• # 🇦🇷 Alejo Lorenzo Lingua Lavallén

• # 🇺🇸 William Grant

• # 🇧🇷 Mateus Alves

• # 🇺🇸 Dali Blanch

• # 🇫🇷 Lilian Marmousez

• # Christian Lerby

• # 🇦🇷 Román Andrés Burruchaga