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.

[1] 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.

This biographical article relating to South Korean athletics is a stub.