| Event: | Judo |
| Games: | 2010 South American Games |
| Dates: | March 19–22 |
| Prev: | 2006 |
| Next: | 2014 |
There were 22 judo events at the 2010 South American Games: 9 men's individual events, 9 women's individual events, men's and women's team and men's nage-no-kata and katame-no-kata. The events were held over March 19–22.
| Men's events | ||||
| Men's nage-no-kata | Glatenferd Escobar Luis Gabriel Cuartas | Rioiti Uchida Luis Santos | Medardo Duarte Javier Rivero Johnny Martin Ramirez Luis Jaime Romero | |
| Men's katame-no-kata | Rioiti Uchida Luis Santos | Glatenferd Escobar Luis Gabriel Cuartas | Medardo Duarte Javier Rivero Ariel Sorati Juan Pablo Vital | |
| Men's 55 kg | Armando Maita | Cristhian Gabriel Vera | Andrés Alezander Muñoz Juan Pablo Vital | |
| Men's 60 kg | Juan Miguel Acuña | José Ernesto Cano | John Jairo Vargas Javier Guédez | |
| Men's 66 kg | Ricardo Valderrama | Luis Ricardo Revite | Flavio Ormaza Alejandro Villarroel | |
| Men's 73 kg | Alejandro Clara | Pablo Azzi Almeida | Antonio Rivas Bruno Mendonça | |
| Men's 81 kg | Germán Velazco Correa | Mervin Rodríguez | Emmanuel Lucenti Rodrigo Luna | |
| Men's 90 kg | Diego Rosati | José Gregorio Camacho | Oscar Rey Eduardo Santos | |
| Men's 100 kg | Leonardo Leite | Camilo Avila | Antony Pena Cristian Schmidt | |
| Men's +100 kg | Rafael Silva | Italo Alata | Orlando Baccino Luis Carvajal | |
| Men's Open | Rafael Silva | Germán Correa | Antony Pena Orlando Baccino | |
| Men's Team | Antony Peña José Gregorio Camacho Mervin Rodríguez Javier Guédez Ricardo Valderrama Armando Maita Fabián González Antonio Rivas | Rafael Silva Ricardo Ayres Eduardo Santos Leonardo Leite Rodrigo Luna Bruno Mendonça Luis Ricardo Revite | Emmanuel Lucenti Jorge David Peralta Orlando Baccino Diego Rosati Miguel Angel Albarracin Alejandro Clara Juan Pablo Vital Cristian Schmidt Derian Giraldo Camilo Edilfonso Avila Luis Ignacio Carvajal Oscar Eduardo Rey Andrés Betancourt Samuel Aristizábal John Jairo Vargas Mario Antonio Velasquez | |
| Women's events | ||||
| Women's 44 kg | Yelitza Morillo | Steffany Garatejo | Catiere Toledo Ibeth Heredia | |
| Women's 48 kg | Paula Pareto | Daniela Polzin | Liliana Coloma Luz Álvarez | |
| Women's 52 kg | Andressa Fernandes | Wisneybi Machado | Yulieth Sánchez Oritia González | |
| Women's 57 kg | Ketleyn Quadros | Melissa Rodríguez | Diana Villavicencio Yadinis Amarís | |
| Women's 63 kg | Diana Velasco | Mariana López | Ysis Barreto Laisa Santana | |
| Women's 70 kg | Yuri Alvear | Vanessa Minda | María Elena Rojas Glaucia Lima | |
| Women's 78 kg | Lorena Briceño | Anny Cortez | Diana Zamora Keivi Pinto | |
| Women's +78 kg | Carmen Chalá | Giovanna Blanco | Priscila Silva | |
| Women's Open | Giovanna Blanco | Steffani Lupetti | Carmen Chalá | |
| Women's Team | Steffany Garatejo Yuri Alvear Yadinis Amarís Yulieth Sánchez Luz Álvarez Diana Velasco Anny Cortez | Steffani Lupetti Daniela Polzin Priscila Silva Catiere Toledo Ketleyn Quadros Laisa Santana Andressa Fernandes Glaucia Lima | Diana Villavicencio Ibeth Heredia Joselin Guiracocha Vanessa Minda Diana Belen Morales Diana Zamora Carmen Chalá Keivi Pinto Luciana Castillo Yelitza Morillo Anriquelis Barrios María Elena Rojas Ysis Barreto Wisneybi Machado Giovanna Blanco | |