The men's 400 metres sprint event at the 1932 Olympic Games took place on August 4 and August 5 at the Los Angeles Memorial Coliseum. Twenty-seven athletes from 15 nations competed. The 1930 Olympic Congress in Berlin had reduced the limit from 4 athletes per NOC to 3 athletes. The event was won by Bill Carr of the United States, that nation's second consecutive title and sixth overall in the event (all by different men). Ben Eastman's silver marked the first time countrymen had gone one-two in the event since the United States did it at the first three Olympics (1896, 1900, and 1904, including a podium sweep in 1904).