| Roles | Competed in Olympic Games |
|---|---|
| Sex | Female |
| Full name | Kim•Seong-Yeon |
| Used name | Kim•Seong-Yeon |
| Name order | Oriental |
| Original name | 김•성연 |
| Born | 16 April 1991 in Suncheon, Jeollanam (KOR) |
| Measurements | 175 cm / 70 kg |
| Affiliations | Gwangju Metropolitan Transit Corporation |
| NOC | Republic of Korea |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2016 Summer Olympics | Judo | KOR |
Kim Seong-Yeon | |||
| Middleweight, Women (Olympic) | =9 | |||||
| 2020 Summer Olympics | Judo | KOR |
Kim Seong-Yeon | |||
| Team, Mixed (Olympic) | Republic of Korea | =9 | ||||
| Middleweight, Women (Olympic) | =9 |