The men's sabre was a fencing event held as part of the Fencing at the 1920 Summer Olympics programme. It was the sixth appearance of the event. A total of 43 fencers from 9 nations competed in the event, which was held on August 25 and August 26, 1920. Nations were limited to eight fencers each. The event was won by Nedo Nadi of Italy, one of his five gold medals in 1920. His brother Aldo Nadi took silver. Adrianus de Jong of the Netherlands finished third. They were the first medals in the individual men's sabre for both countries. This was the only time from 1908 to 1964 that Hungary did not win the men's sabre—with no Hungarian fencers competing after the nation was disinvited after World War I.