Bae Jun-seo (born 25 December 2000) is a South Korean taekwondo practitioner and two-time world champion.
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.
In 2022, he won the bronze medal at the 2022 World Taekwondo Championships in the men's 54 kg event.
At the 2023 World Taekwondo Championships, he won the gold medal in the men's 58 kg event.