Results for Republic of Korea in Marathon, Men

Olympic and Intercalated results only.

Games	Athlete/Team	Placement
1948 Summer Olympics	Hong Jong-Oh	25
	Seo Yun-Bok	27
	Choi Yun-Chil	DNF
1952 Summer Olympics	Choi Yun-Chil	4
	Choi Chung-Sik	33
	Hong Jong-Oh	DNF
1956 Summer Olympics	Lee Chang-Hun	4
	Choi Chung-Sik	12
	Im Hwa-Dong	DNF
1960 Summer Olympics	Lee Chang-Hun	20
	Lee Sang-Cheol	47
	Kim Yeon-Beom	DNF
1964 Summer Olympics	Lee Sang-Hun	11
	Kim Yeon-Beom	16
	Ju Hyeong-Gyeol	50
1968 Summer Olympics	Lee Myeong-Jeong	29
	Kim Bong-Nae	38
	Lee Sang-Hun	46
1984 Summer Olympics	Lee Hong-Yeol	37
	Chae Hong-Nak	48
	Kim Won-Sik	58
1988 Summer Olympics	Kim Won-Tak	18
	Yu Jae-Seong	31
	Gwon Seong-Nak	DNF
1992 Summer Olympics	Hwang Yeong-Jo	1	Gold
	Kim Jae-Ryong	10
	Kim Wan-Gi	28
1996 Summer Olympics	Lee Bong-Ju	2	Silver
	Kim Lee-Yong	12
	Kim Wan-Gi	DNF
2000 Summer Olympics	Lee Bong-Ju	24
	Jeong Nam-Gyun	45
	Baek Seung-Do	65
2004 Summer Olympics	Lee Bong-Ju	14
	Ji Yeong-Jun	17
	Lee Myeong-Seung	41
2008 Summer Olympics	Lee Myeong-Seung	18
	Lee Bong-Ju	28
	Kim Lee-Yong	50
2012 Summer Olympics	Lee Du-Haeng	32
	Jang Sin-Gwon	73
	Jeong Jin-Hyeok	82
2016 Summer Olympics	Son Myeong-Jun	130
	Sim Jong-Seop	137
2020 Summer Olympics	Sim Jong-Seop	48
	Oh Ju-Hwan	DNF