Seo Chae-hyun (Hangul: 서채현, born 1 November 2003), also known as Chaehyun Seo, is a South Korean professional climber. She won the 2019 Lead World Cup overall title in her senior debut season.[1]
Seo was born into a family of climbers. She started climbing in 2008. Her father owns a climbing gym in Seoul.
In 2018, at age fourteen, Seo sent a 9a route Bad Girls Club at the Wicked Cave at Rifle, Colorado.[2]
In 2019, she made her IFSC Climbing World Cup debut and won the Lead World Cup season title ahead of Slovenian Janja Garnbret and Japanese Natsuki Tanii by winning 4 gold, 1 silver, and 1 bronze medals in six out of six lead events.[3]
Then she participated in the Asian Championships and placed first in both lead and bouldering disciplines.[4]