The Men's Boxing Tournament at the 1983 Pan American Games was held in Caracas, Venezuela, from August 14 to August 29. The super heavyweight division was included for the first time.
| Light Flyweight (– 48 kilograms) | Rafael Ramos |  Paul Gonzales |  Héctor Díaz Manoelito Santos | |
| Flyweight (– 51 kilograms) |  Pedro Orlando Reyes | Laureano Ramírez Padilla |  Jesus Poll Steve McCrory | |
| Bantamweight (– 54 kilograms) | Manuel Vilchez | Pedro Nolasco |  Robinsón Pitalúa Floyd Favors | |
| Featherweight (– 57 kilograms) | Adolfo Horta | Santos Cardona | Bernard Gary Rafael Zuñiga | |
| Lightweight (– 60 kilograms) | Pernell Whitaker | Ángel Herrera Vera |  Alberto Cortez Angel Beltre | |
| Light Welterweight (– 63.5 kilograms) | Candelario Duvergel | Jerry Page |  Genaro Léon Giovanni Sepulveda | |
| Welterweight (– 67 kilograms) | Louis Howard | José Aguilar | Luis Luis García Antonio Madureira | |
| Light Middleweight (– 71 kilograms) | Orestes Solano | Dennis Milton | Dario Matteoni Héctor Ortíz | |
| Middleweight (– 75 kilograms) | Bernardo Comas | Alfredo Delgado | Pedro Gamarro John Smith | |
| Light Heavyweight (– 81 kilograms) | Pablo Romero | Evander Holyfield | Miguel Mosna Carlos Salazar | |
| Heavyweight (– 91 kilograms) | Aurelio Toyo | Henry Tillman | Virgilio Frias Alex Stewart | |
| Super Heavyweight (+ 91 kilograms) | Jorge Luis González | Eloy Loaiza | Tyrell Biggs |