Results for Republic of Korea in 400 metres, Men

Olympic and Intercalated results only.

Games	Athlete/Team	Placement
1952 Summer Olympics	Eom Pal-Yong	DNS
1964 Summer Olympics	Jang Jong-Gil	DNS
1988 Summer Olympics	Yun Nam-Han	4 h8 r1/4
1996 Summer Olympics	Son Ju-Il	6 h3 r1/4