Lee Jae-seong

Lee Jae-seong (born 18 June 2001) is a South Korean sprinter.

Career He was a bronze medalist with the South Korean men’s 4 x 100 metres team at the delayed 2022 Asian Games held in Hangzhou, China in October 2023. It was the first time a South Korean team had won a medal in the event at the Games since 1986.

He was a gold medalist with the South Korean men’s 4 x 100 metres team at the 2025 Asian Athletics Championships in Gumi, South Korea. He competed at the 2025 World Athletics Relays in China in the Men's 4 × 100 metres relay in May 2025.

He was a bronze medalist medalist over 200 metres at the 2025 World University Games in Bochum, Germany, finishing third behind Bayanda Walaza of South Africa and Adria Alfonso of Spain. He also won a gold medal in the men's 4 x 100 metres at the Games.

Personal life He had the honour of the ceremonial first ceremonial pitch for the Kia Tigers baseball team in Gwangju in 2025.