| 2013 Asian Junior Badminton Championships – Boys singles | |
| Dates: | – |
| Number Edition: | 16 |
| Venue: | Likas Indoor Stadium |
| Location: | Kota Kinabalu, Malaysia |
| Previous: | 2012 |
| Next: | 2014 |
The Boys' Singles tournament of the 2013 Asian Junior Badminton Championships was held from July 10–14 in Kota Kinabalu, Malaysia.[1] The defending champion of the last edition was Kento Momota from Japan.[2] Thammasin Sitthikom of Thailand who standing in the top seeds was defeated by the No.5 seeded Soo Teck Zhi of Malaysia in the semifinals, while the second seeded Soong Joo Ven of Malaysia fell in the quarterfinals to Jeon Hyuk-jin of South Korea.[3] Soo Teck Zhi emerged as the champion after beat Jeon Hyuk-jin in the finals with the score 21–17, 13–21, 21–15.[4]
Thammasin Sitthikom (semi-final) Pannawit Thongnuam (fourth round)
Heo Kwang-hee (fourth round)
Harsheel Dani (fourth round) Jeon Hyuk-jin (final)
Chang Tak Ching (second round) Kittiphon Chairojkanjana (fourth round) Lee Cheuk Yiu (second round) Aditya Joshi (fourth round)
Yugo Kobayashi (fourth round)