Results for Dominican Republic in 400 metres, Men

Olympic and Intercalated results only.

Games	Athlete/Team	Placement
1968 Summer Olympics	José L'Oficial	7 h6 r1/4
2000 Summer Olympics	Carlos Santa	6 h1 r1/4
2004 Summer Olympics	Carlos Santa	4 h3 r2/3
2008 Summer Olympics	Arismendy Peguero	6 h2 r1/3
2012 Summer Olympics	Luguelín Santos	2	Silver
2016 Summer Olympics	Luguelín Santos	4 h1 r2/3
	Gustavo Cuesta	7 h4 r1/3
2024 Summer Olympics	Alexander Ogando	DNSh2 r2/4