Seo Seung-jae

Seo Seung-jae
Seo in 2024
Personal information
Born (1997-09-04) 4 September 1997
Jeonju, South Korea
Height1.82 m (6 ft 0 in)
Sport
CountrySouth Korea
SportBadminton
HandednessLeft
Men's & mixed doubles
Highest ranking1 (MD with Kim Won-ho, 22 July 2025)
2 (MD with Kang Min-hyuk, 20 February 2024)
7 (MD with Choi Sol-gyu, 19 November 2019)
2 (XD with Chae Yoo-jung, 12 March 2024)
5 (XD with Kim Ha-na, 17 May 2018)
Current ranking1 (MD with Kim Won-ho, 3 March 2026)
BWF profile
Medal record
Men's badminton
Representing  South Korea
World Championships
2023 Copenhagen Men's doubles
2025 Paris Men's doubles
2023 Copenhagen Mixed doubles
Sudirman Cup
2017 Gold Coast Mixed team
2023 Suzhou Mixed team
2025 Xiamen Mixed team
2021 Vantaa Mixed team
Asian Games
2022 Hangzhou Mixed doubles
2022 Hangzhou Men's team
Asia Championships
2024 Ningbo Mixed doubles
Asia Team Championships
2018 Alor Setar Men's team
2024 Selangor Men's team
2026 Qingdao Men's team
Summer Universiade
2017 Taipei Men's doubles
World Junior Championships
2013 Bangkok Mixed team
2012 Chiba Mixed team
2013 Bangkok Boys' doubles
Asian Junior Championships
2013 Kota Kinabalu Mixed team
2014 Taipei Mixed team
2015 Bangkok Boys' singles
2015 Bangkok Mixed team

Seo Seung-jae (Korean서승재; 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 competed at the 2017 Sudirman Cup and helped the Korean national team to its fourth trophy. He then went on to win his second men's doubles title in the 2025 BWF World Championships with his partner Kim Won-ho.