The men's lightweight event was part of the boxing programme at the 1920 Summer Olympics. The weight class was the fourth-lightest contested, and allowed boxers of up to 135.5 pounds (61.2 kilograms). The competition was held from August 21, 1920 to August 24, 1920. 16 boxers from ten nations competed.[1]
1904: 125–135 lb (56.7–61.2 kg) · 1908: 126–140 lb (57.2–63.5 kg) · 1920–1936: 126–135 lb (57.2–61.2 kg) · 1948: 58–62 kg · 1952–2008: 57–60 kg · 2012: 56–60 kg · 2016: 57–60 kg · 2020–2024: 58–63 kg · 2024–: 58–63.5 kg