| 2023 BWF World Junior Championships – boys' singles | |
| Dates: | – |
| Number Edition: | 23rd |
| Level: | 1 |
| Venue: | The Podium |
| Location: | Spokane, United States |
| Previous: | 2022 Santander |
| Next: | 2024 |
The boys' singles of the tournament 2023 BWF World Junior Championships was an individual badminton tournament to crowned the best boys' singles under 19 player across the BWF associate members around the world. Players will compete to win the Eye Level Cup presented by the former BWF President and chairman of the World Youth Culture Foundation, Kang Young Joong.[1] The tournament was held from 2 to 8 October 2023 in the Podium, Spokane, United States.[2] The defending champion was Kuo Kuan-lin from Chinese Taipei, but he was not eligible to participate this year.[3]
See also: 1. 
Alex Lanier (semi-finals)
See also: 2. Eogene Ewe (second round)
See also: 3. 
Hu Zhean (final)
See also: 4. Alwi Farhan (champion)
See also: 5. Bharath Latheesh (third round)
See also: 6. Wang Zijun (quarter-finals)
See also: 7. 
Yudai Okimoto (quarter-finals)
See also: 8. 
Marcus Lau (second round)
See also: 9. 
Patcharakit Apiratchataset (fourth round)
See also: 10. Nachakorn Pusri (third round)
See also: 11. Muhammad Faiq (quarter-finals)
See also: 12. 
Baptiste Rolin (second round)
See also: 13. Dev Vishnu (third round)
See also: 14. 
Garret Tan (second round)
See also: 15. Noah Haase (third round)
See also: 16. Wongsup Wongsup-in (fourth round)