At the 2006 South American Games 18 judo events were held, 9 in both genders. The first eight events were held on 9 November, while to others took place on 10 November.
– 55 kg | BRA}} Thiago Aoki | COL}} Jaime Jaramillo | ARG}} Diego Rodríguez {{Flagicon|ECU}} Carlos Tenesaca |
– 60 kg | ARG}} Miguel Albarracín | VEN}} Javier Guédez | BRA}} Daniel Aquino {{Flagicon|PER}} Juan Miguel Postigos Acuña |
– 66 kg | ECU}} Roberto Ibañez | BRA}} Vitor Ferraz | CHI}} Felipe Novoa {{Flagicon|VEN}} Ludwig Ortíz |
– 73 kg | ARG}} Daniel Lucenti | CHI}} Eduardo Novoa Cianelli | BRA}} Diogo Coutinho {{Flagicon|VEN}} Richard Leon |
– 81 kg | ARG}} Emmanuel Lucenti | COL}} Mario Valles | CHI}} Francisco Ayala {{Flagicon|VEN}} Yemer Lopez |
– 90 kg | ARG}} Diego Rosati | CHI}} Guillermo Urriola | BRA}} Alexsander Jose Guedes {{Flagicon|VEN}} José Camacho |
– 100 kg | BRA}} Luciano Ribeiro Correa | ARG}} Alejandro Elissi | VEN}} Albeny Rosales {{Flagicon|}} |
+ 100 kg | BRA}} Walter Costa Dos Santos | PER}} Carlos Zegarra | COL}} Luis Ignacio Salazar Carvajal {{Flagicon|ARG}} Ruben Walesberg |
Open class | COL}} Luis Ignacio Salazar Carvajal | VEN}} Albeny Rosales | BRA}} Walter Costa Dos Santos {{Flagicon|PER}} Carlos Zegarra |
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