The girls' singles event of the 2017 BWF World Junior Championships in badminton was held on 16–22 October. The defending champion was Chen Yufei from China.[1]
See also: 1 and 1. 
Phittayaporn Chaiwan (quarterfinals)
See also: 2 and 16. 
Yeo Jia Min (fifth round)
See also: 3 and 5. Gregoria Mariska Tunjung (champion)
See also: 4 and 12. Goh Jin Wei (semifinals)
See also: 5 and 14. 
Han Yue (final)
See also: 6 and 3. Cai Yanyan (semifinals)
See also: 7 and 10. 
Asuka Takahashi (fifth round)
See also: 8 and 7. 
Aakarshi Kashyap (fourth round)
See also: 9 and 13. Chasinee Korepap (fifth round)
See also: 10 and 9. Chananchida Jucharoen (quarter-finals)
See also: 11 and 8. Maria Delcheva (third round)
See also: 12 and 6. 
Vivien Sandorhazi (fourth round)
See also: 13 and 2. Huang Yin-hsuan (fourth round)
See also: 14 and 15. Reka Madarasz (second round)
See also: 15 and 4. 
Tereza Svabikova (third round)
See also: 16 and 11. Choirunnisa (fifth round)