Results for Portugal in 100 metres Backstroke, Men

Olympic and Intercalated results only.

Games	Athlete/Team	Placement
1948 Summer Olympics	Mário Simas	20
1952 Summer Olympics	Eduardo Barbeiro	30
	Eurico Surgey	32
1960 Summer Olympics	Raúl Cerqueira	27
1976 Summer Olympics	António Botelho de Melo	39
1980 Summer Olympics	Rui de Abreu	25
1992 Summer Olympics	Miguel Arrobas	42
1996 Summer Olympics	Nuno Laurentino	30
2000 Summer Olympics	Nuno Laurentino	=28
2020 Summer Olympics	Francisco Santos	28
2024 Summer Olympics	João Costa	32