The men's 5000 metres event at the 1948 Olympic Games took place July 31 and August 2. The final was won by Gaston Reiff of Belgium. The Belgian Gaston Reiff became the Olympic champion ahead of the Czechoslovakian Emil Zátopek. Willem Slijkhuis from the Netherlands won bronze.

Emil Zátopek was a Czech long-distance runner best known for winning three gold medals at the 1952 Summer Olympics in Helsinki. He won gold in the 5,000 metres and 10,000 metres runs, but his final medal came when he decided at the last minute to compete in the first marathon of his life. He was nicknamed the "Czech Locomotive".