Results for Portugal in 400 metres Individual Medley, Men

Olympic and Intercalated results only.

Games	Athlete/Team	Placement
1964 Summer Olympics	António Bessone Basto	26
1976 Summer Olympics	António Botelho de Melo	31
1988 Summer Olympics	Rui Borges	22
	Diogo Madeira	26
2012 Summer Olympics	Diogo Carvalho	=26
2016 Summer Olympics	Alexis Santos	14
2020 Summer Olympics	José Paulo Lopes	20