Bae Jun-seo (born 25 December 2000) is a South Korean taekwondo practitioner and two time world champion.

[1] At the 2016 World Taekwondo Junior Championships, Bae Jun-seo won the gold medal in the 45 kg event.

He won the gold medal at the 2019 World Taekwondo Championships in the men's 54 kg event.

[2] In 2022, he won the bronze medal at the 2022 World Taekwondo Championships in the men's 54 kg event.

[3] At the 2023 World Taekwondo Championships, he won the gold medal in the men's 58 kg event.