Jang Jae-keun
| Medal record | ||
|---|---|---|
| Men's athletics | ||
| Asian Championships | ||
| 1985 Jakarta | 200 m | |
| 1983 Kuwait City | 200 m | |
| 1985 Jakarta | 100 m | |
| 1985 Jakarta | 4×100 m | |
Jang Jae-Geun (born 2 January 1962) is a Korean former sprinter who competed in the 1984 Summer Olympics and in the 1988 Summer Olympics.
Jang was the first Korean sprinter to win a gold medal at the Asian Games. He was also the first Asian athletics medalist at the World University Games. He later became a coach at the Seoul City Hall.