 
| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Ji•Seong-Hwan | 
| Used name | Ji•Seong-Hwan | 
| Name order | Oriental | 
| Original name | 지•성환 | 
| Born | 16 September 1974 in Seongnam, Gyeonggi (KOR) | 
| Measurements | 184 cm / 80 kg | 
| Affiliations | Sungnam City Office (KOR) | 
| NOC |  Republic of Korea | 
| Medals | OG | 
| Gold | 0 | 
| Silver | 1 | 
| Bronze | 0 | 
| Total | 1 | 
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2000 Summer Olympics | Hockey |  KOR | Ji Seong-Hwan | |||
| Hockey, Men (Olympic) | Republic of Korea | 2 | Silver | |||
| 2004 Summer Olympics | Hockey |  KOR | Ji Seong-Hwan | |||
| Hockey, Men (Olympic) | Republic of Korea | 8 |