| Event: | Men's 81 kg |
| Championship: | 2013 World Judo Championships |
| Location: | Rio de Janeiro, Brazil |
| Gold: | Loic Pietri |
| Gold Value: | 1 |
| Goldnoc: | FRA |
| Silver: | Avtandil Tchrikishvili |
| Silvernoc: | GEO |
| Bronze: | Ivan Vorobev |
| Bronzenoc: | RUS |
| Bronze2: | Alain Schmitt |
| Bronzenoc2: | FRA |
The men's 81 kg competition of the 2013 World Judo Championships was held on August 29.
| width=200 bgcolor=gold | Gold | width=200 bgcolor=silver | Silver | width=200 bgcolor=CC9966 | Bronze |
| Score | |||
|---|---|---|---|
| Neal van de Kamer | 100–000 | Mohammed Noor | |
Borche Tosheski  | 000–110 |  Ivan Vorobev |
| Score | |||
|---|---|---|---|
Saeid Moradi  | 000–002 |  Jorge Martínez | |
Eoin Coughlan  | 000–101 |
| Score | |||
|---|---|---|---|
| 000–000 | Konstantīns Ovčiņņikovs | ||
Safouane Attaf  | 100–000 | Leslie Philoe |
| Score | |||
|---|---|---|---|
| Carlos Luz | 110–000 | Deepak Shrestha | |
Robin Pacek  | 101–011 |  Vitalii Dudchyk | |
Joachim Bottieau  | 000–000 | Vadim Bocan |