| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Female | |
| Full name | Hong•Un-Jong | |
| Used name | Hong•Un-Jong | |
| Name order | Oriental | |
| Born | 9 March 1989 in Hamgyong |  PRK |
| Measurements | 156 cm / 47 kg | |
| Affiliations | Pyongyang Sports Club | |
| NOC | Democratic People's Republic of Korea | PRK |
| Medals | OG |
| Gold | 1 |
| Silver | 0 |
| Bronze | 0 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2008 Summer Olympics | Artistic Gymnastics (Gymnastics) | PRK |
Hong Un-Jong | |||
| All-Around, Individual, Women (Olympic) | 41 r1/2 | |||||
| Floor Exercise, Women (Olympic) | 58 r1/2 | |||||
| Vault, Women (Olympic) | 1 | Gold | ||||
| Uneven Bars, Women (Olympic) | 56 r1/2 | |||||
| Balance Beam, Women (Olympic) | 78 r1/2 | |||||
| 2016 Summer Olympics | Artistic Gymnastics (Gymnastics) | PRK |
Hong Un-Jong | |||
| Floor Exercise, Women (Olympic) | 71 r1/2 | |||||
| Vault, Women (Olympic) | 6 |
