| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Choi•Gyu-Ung |
| Used name | Choi•Gyu-Ung |
| Name order | Oriental |
| Original name | 최•규웅 |
| Other names | Choi Gyu-Wung, Choi Kyu-Woong |
| Born | 28 May 1990 in Busan, Busan (KOR) |
| Measurements | 181 cm / 75 kg |
| Affiliations | Korean National Sports University, Seoul, KOR |
| NOC | Republic of Korea |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2012 Summer Olympics | Swimming (Aquatics) | KOR |
Choi Gyu-Ung | |||
| 200 metres Breaststroke, Men (Olympic) | 25 | |||||
| 2016 Summer Olympics | Swimming (Aquatics) | KOR |
Choi Gyu-Ung | |||
| 200 metres Breaststroke, Men (Olympic) | 31 |