Results for Italy in 400 metres Freestyle, Men

Olympic and Intercalated results only.

Games	Athlete/Team	Placement
1906 Intercalated Games	Mario Albertini	DNS
1908 Summer Olympics	Mario Massa	3 h6 r1/3
	Davide Baiardo	AC h4 r1/3
	Vincenzo De Stefani	DNS
	Anchise Gonzani	DNS
1912 Summer Olympics	Davide Baiardo	5 h1 r1/3
	Mario Massa	AC h1 r1/3
	Virgilio Bellezza	DNS
	Attilio Bellezza	DNS
	Aldo Cigheri	DNS
	Mario Pratolongo	DNS
1920 Summer Olympics	Antonio Quarantotto	5 h5 r1/3
	Giglio Bisagno	6 h4 r1/3
1924 Summer Olympics	Renato Bacigalupo	DNS
1928 Summer Olympics	Paolo Costoli	3 h5 r1/3
	Giuseppe Perentin	DNS
	Renato Bacigalupo	DNS
1932 Summer Olympics	Paolo Costoli	9
	Giuseppe Perentin	10
1952 Summer Olympics	Angelo Romani	33
1956 Summer Olympics	Angelo Romani	8
1960 Summer Olympics	Paolo Galletti	17
	Massimo Rosi	28
1964 Summer Olympics	Sergio De Gregorio	15
	Pierpaolo Spangaro	=23
	Giovanni Orlando	26
1972 Summer Olympics	Arnaldo Cinquetti	30
1980 Summer Olympics	Paolo Revelli	DNS
	Federico Silvestri	DNS
1984 Summer Olympics	Marco Dell'Uomo	7
	Stefano Grandi	12
1988 Summer Olympics	Giorgio Lamberti	18
	Roberto Gleria	19
1992 Summer Olympics	Piermaria Siciliano	12
	Massimo Trevisan	19
1996 Summer Olympics	Emiliano Brembilla	4
	Massi Rosolino	6
2000 Summer Olympics	Massi Rosolino	2	Silver
	Emiliano Brembilla	4
2004 Summer Olympics	Massi Rosolino	5
	Emiliano Brembilla	11
2008 Summer Olympics	Federico Colbertaldo	11
	Massi Rosolino	13
2012 Summer Olympics	Samuel Pizzetti	18
2016 Summer Olympics	Gabriele Detti	3	Bronze
2020 Summer Olympics	Gabriele Detti	6
	Marco De Tullio	10
2024 Summer Olympics	Marco De Tullio	17
	Matteo Lamberti	20