The men's 800 metres event at the 1948 Olympic Games took place July 30, July 31 and August 2. Forty-one athletes from 24 nations competed. The maximum number of athletes per nation had been set at 3

Marcel Hansenne was a French middle distance runner, who won the bronze medal at the 1948 Summer Olympics in London over 800 m in a time of 1:49.8 min. The race was won by Mal Whitfield. Hansenne also