2019 BWF World Junior Championships – Boys' singles

The boys' singles of the tournament 2019 BWF World Junior Championships was held from 7 to 13 October 2019. The defending champions is Kunlavut Vitidsarn from Thailand.

Seeds
🇹🇭 Kunlavut Vitidsarn (champion) 🇨🇦 Brian Yang (fourth round) 🇨🇳 Liu Liang (fifth round) 🇨🇳 Li Yunze (semifinals) Syabda Perkasa Belawa (third round) Bobby Setiabudi (quarterfinals) 🇮🇳 Meiraba Luwang Maisnam (third round) Christian Adinata (fourth round)

🇷🇺 Georgii Karpov (second round) 🇫🇷 Christo Popov (final) 🇪🇸 Tomas Toledano (third round) Kok Jing Hong (fourth round) Yonathan Ramlie (semifinals) 🇪🇸 Ernesto Baschwitz (second round) Luka Ban (second round) 🇹🇭 Setthanan Piyawatcharavijit (fifth round)