The girls' 49 kg competition in taekwondo at the 2010 Summer Youth Olympics in Singapore took place on August 16. A total of 12 women competed in this event, limited to fighters whose body weight was less than 49 kilograms. Preliminaries started at 14:00, quarterfinals started at 15:54, semifinals at 18:30 and the final at 19:53. Two bronze medals were awarded at the Taekwondo competitions.
Medalists
edit| Gold | Worawong Pongpanit Thailand
|
| Silver | Dana Touran Jordan
|
| Bronze | Jessie Bates United States
|
Melanie Phan Canada
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Results
edit- Legend
- PTG — Won by Points Gap
- SUP — Won by Superiority
- OT — Won on over time (Golden Point)
Main bracket
edit| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||
 Maham Aftab (PAK)
| RSC 3 1:27 | ||||||||||||||||||
 Dana Touran (JOR)
| 14 | Dana Touran (JOR)
| |||||||||||||||||
 Yasmin Terra (URU)
| 1 | Dana Touran (JOR)
| 2 | ||||||||||||||||
 So Hui Kim (KOR)
| 6 |  Jessie Bates (USA)
| 1 | ||||||||||||||||
| Jessie Bates (USA)
| 9 | Jessie Bates (USA)
| |||||||||||||||||
 Chimi Wangmo (BHU)
| RSC 2 0:25 | ||||||||||||||||||
| Dana Touran (JOR)
| 4 | ||||||||||||||||||
 Worawong Pongpanit (THA)
| 5 | ||||||||||||||||||
 Haya Jumaa (UAE)
| 2 | ||||||||||||||||||
 Jacira Mendes (CPV)
| KO 1 0:38 | Worawong Pongpanit (THA)
| 12 | ||||||||||||||||
| Worawong Pongpanit (THA)
| Worawong Pongpanit (THA)
| 4 (SUP) | |||||||||||||||||
 Melanie Phan (CAN)
| 7 | Melanie Phan (CAN)
| 4 | ||||||||||||||||
 Nour Abdelsalam (EGY)
| 1 | Melanie Phan (CAN)
| 15 | ||||||||||||||||
 Nur Zakirah Zakaria (SIN)
| 6 | ||||||||||||||||||