Kim Seong-Yeon (Korean: 김성연, born 16 April 1991) is a South Korean judoka. She won a bronze medal in the –70 kg at the 2013 World Judo Championships. She was ranked No. 9 in the world as of 8 February 2016.[1] She lost in the second round of the 2016 Olympics to Israeli Linda Bolder.[2][3][4]
In 2021, she competed in the women's 70 kg event at the 2020 Summer Olympics in Tokyo, Japan.[5]