The men's light welterweight event was part of the boxing programme at the 1956 Summer Olympics. The weight class was allowed boxers of up to 63.5 kilograms to compete. The competition was held from 24 November to 1 December 1956. 22 boxers from 22 nations competed.
Medalists
Results First round Constantin Dumitrescu (ROU) def. Terrence Oung (BUR), PTS Hans Pedersen (DEN) def. Carlos Rodríguez (VEN), PTS Antonio Marcilla (ARG) def. Chune Pattapong (THA), RSC-1 Leopold Potesil (AUT) def. Celestino Pinto (BRA), PTS Franco Nenci (ITA) def. Gul Rehmat (PAK), RSC-3 Willi Roth (FRG) def. Thomas Schuster (FIJ), PTS
Second round Claude Saluden (FRA) def. Harry Perry (IRL), PTS Vladimir Yengibaryan (URS) def. Leszek Drogosz (POL), PTS Henry Loubscher (RSA) def. Leslie Mason (CAN), PTS Joseph Shaw (USA) def. Max Carlos (AUS), PTS Hwang Ui-gyeong (KOR) def. Manuel de los Santos (PHI), DSQ-2 Constantin Dumitrescu (ROU) def. Hans Pedersen (DEN), PTS Antonio Marcilla (ARG) def. Leopold Potesil (AUT), PTS Franco Nenci (ITA) def. Willi Roth (FRG), PTS
Quarterfinals Vladimir Yengibaryan (URS) def. Claude Saluden (FRA), PTS Henry Loubscher (RSA) def. Joseph Shaw (USA), PTS Constantin Dumitrescu (ROU) def. Hwang Ei-Kyung (KOR), PTS Franco Nenci (ITA) def. Antonio Marcilla (ARG), PTS
Semifinals Vladimir Yengibaryan (URS) def. Henry Loubscher (RSA), PTS Franco Nenci (ITA) def. Constantin Dumitrescu (ROU), PTS
Final Vladimir Yengibaryan (URS) def. Franco Nenci (ITA), PTS
References
https://web.archive.org/web/20080912181829/http://www.la84foundation.org/6oic/OfficialReports/1956/OR1956.pdf