Seo Seung-jae

Seo Seung-jae (born 4 September 1997) is a South Korean badminton player. A three-time World champion, he is the first South Korean player in 24 years to have won two gold medals in a single edition of the BWF World Championships, by winning the mixed and men's doubles event at the 2023 BWF World Championships, partnering with Chae Yoo-jung and Kang Min-hyuk respectively. He then went on to win his second men's doubles title in the 2025 BWF World Championships, and first Asian Championships title in 2026 with his partner Kim Won-ho. He competed at the 2017 Sudirman Cup and helped the Korean national team to its fourth trophy. He reached a career-high as world number 1 in the men's doubles with Kim Won-ho.