| Event: | Men's 100 kg |
| Championship: | 2013 World Judo Championships |
| Location: | Rio de Janeiro, Brazil |
| Gold: | Elkhan Mammadov |
| Gold Value: | 1 |
| Goldnoc: | AZE |
| Silver: | Henk Grol |
| Silvernoc: | NED |
| Bronze: | Lukáš Krpálek |
| Bronzenoc: | CZE |
| Bronze2: | Dimitri Peters |
| Bronzenoc2: | GER |
The men's 100 kg competition of the 2013 World Judo Championships was held on August 31.
| width=200 bgcolor=gold | Gold | width=200 bgcolor=silver | Silver | width=200 bgcolor=CC9966 | Bronze |