| Flyweight −50.8kg / 112lb | 
| 1. Antal Kocsis | Hungary | 
| 2. Armand Apell | France | 
| 3. Carlo Cavagnoli | Italy | 
| Bantamweight −53.5kg / 118lb | 
| 1. Vittorio Tamagnini | Italy | 
| 2. John Daley | United States | 
| 3. Harry Isaacs | South Africa | 
| Featherweight −57.2kg / 126lb | 
| 1. Bep van Klaveren | Netherlands | 
| 2. Víctor Peralta | Argentina | 
| 3. Harold Devine | United States | 
| Lightweight −61.2kg / 135lb | 
| 1. Carlo Orlandi | Italy | 
| 2. Stephen Halaiko | United States | 
| 3. Gunnar Berggren | Sweden | 
| Welterweight −66.7kg / 147lb | 
| 1. Ted Morgan | New Zealand | 
| 2. Raúl Landini | Argentina | 
| 3. Raymond Smillie | Canada | 
| Middleweight −72.6kg / 160lb | 
| 1. Piero Toscani | Italy | 
| 2. Jan Heřmánek | Czechoslovakia | 
| 3. Léonard Steyaert | Belgium | 
| Light heavyweight −79.4kg / 175lb | 
| 1. Víctor Avendaño | Argentina | 
| 2. Ernst Pistulla | Germany | 
| 3. Karel Miljon | Netherlands | 
| Heavyweight over 79.4kg / 175lb | 
| 1. Arturo Rodríguez Jurado | Argentina | 
| 2. Nils Ramm | Sweden | 
| 3. Michael Michaelsen | Denmark | 
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