The boys' 48 kg competition in taekwondo at the 2010 Summer Youth Olympics in Singapore took place on August 15. A total of 8 men competed in this event, limited to fighters whose body weight was less than 48 kilograms. Quarterfinals started at 14:32, semifinals at 19:02 and the final at 20:09. Two bronze medals were awarded at the Taekwondo competitions.