Judo at the 1984 Summer Olympics – Men's 78 kg
The men's 78 kg competition in judo at the 1984 Summer Olympics in Los Angeles was held on 7 August at the California State University. The gold medal was won by Frank Wieneke of West Germany.Results
Pool A
Pool B
Repechages
Final
| Rank | Judoka | Nation |
| Frank Wieneke | |
| Neil Adams | |
| Mircea Frățică | |
| Michel Nowak | |
| 5T | Filip Lešcak | |
| 5T | Hiromitsu Takano | |
| 7T | Kevin Doherty | |
| 7T | Rob Henneveld | |
| 9T | Brett Barron | |
| 9T | Walid Mohamed Hussain | |
| 11 | Gaston Oula | |
| 12T | Süheyl Yesilnur | |
| 12T | Jorge Bonnet | |
| 14T | António Roquete | |
| 14T | Ousseynou Guèye | |
| 14T | Liu Junlin | |
| 14T | Seppo Myllylä | |
| 14T | Per Kjellin | |
| 14T | Jules-Albert Ndemba | |
| 20T | Abdoulaye Diallo | |
| 20T | Ignacio Sanz | |
| 20T | Rogério dos Santos | |
| 20T | Ioannis Kougialis | |
| 20T | Sun Yih-shong | |
| 20T | Sayed Al-Tubaikh | |
| 20T | Moshe Ponte | |
| 20T | Asafu Tembo | |
| 20T | Paul Diop | |
| 20T | Thomas Haasmann | |
| 20T | Christophe Wogo | |
| 20T | Mohamed Maach | |
| 20T | Carlos Huttich | |
| 20T | Simione Kuruvoli | |
| 34T | Javier Condor | |
| 34T | Fridtjof Thoen | |
| 34T | Graeme Spinks | |
| 34T | Li Chung Tai | |
| 34T | Hwang Jin-su | |
