The boys' singles event of the 2017 BWF World Junior Championships was held on 16–22 October. The defending champion was Sun Feixiang from China.
Seeds
Kunlavut Vitidsarn (champion) Lakshya Sen (quarterfinals) Lee Chia-hao (fourth round) Leong Jun Hao (final) Ruttanapak Oupthong (fifth round) Kodai Naraoka (semifinals) Ikhsan Rumbay (third round) Nhat Nguyen (quarterfinals)
Dmitriy Panarin (third round) Cristian Savin (fourth round) Arnaud Merklé (fifth round) Sim Fong Hau (fourth round) Kartikey Gulshan Kumar (fifth round) Christo Popov (quarterfinals) Leo Rossi (fifth round) Chan Yin Chak (third round)
Draw Finals
Top half Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Bottom half Section 9
Section 10
Section 11
Section 12
Section 13
Section 14
Section 15
Section 16
References