Jang Jun (born April 16, 2000) is a South Korean taekwondo practitioner.

[1] He won the gold medal at the 2018 Asian Taekwondo Championships on the -54 kg weight category, and has won two World Taekwondo Grand Prix titles in 2018.

He won the silver medal in the men's flyweight event at the 2022 World Taekwondo Championships held in Guadalajara, Mexico.

He is part of KOGAS Taekwondo Team.

This biographical article related to South Korean taekwondo is a stub.