| Competition: | 1991 World Judo Championships |
| Dates: | 25–28 July 1991 |
| Location: |  Barcelona, Spain |
The 1991 World Judo Championships were the 17th edition of the World Judo Championships, and were held in Barcelona, Catalonia, Spain from July 25 to July 28, 1991.[1] [2]
| -60 kg |  Tadanori Koshino |  Yoon Hyun | Nazim Huseynov  Philippe Pradayrol | |
| -65 kg | Udo Quellmalz | Masahiko Okuma | Sergei Kosmynin  James Pedro | |
| -71 kg | Toshihiko Koga | Joaquin Ruiz | Chung Hoon Vladimir Dgebuadze | |
| -78 kg | Daniel Lascau |  Johan Laats | Bashir Varaev Hidehiko Yoshida | |
| -86 kg | Hirotaka Okada | Joe Wanag |  Waldemar Legień  Giorgio Vismara | |
| -95 kg | Stéphane Traineau | Pawel Nastula | Marc Meiling  Jiri Sosna | |
| +95 kg | Sergei Kosorotov |  Frank Moreno | Kim Kun-Soo Naoya Ogawa | |
| Open | Naoya Ogawa | David Khakhaleishvili |  Imre Csösz Georges Mathonnet |
| -48 kg | Cécile Nowak |  Karen Briggs | Ryoko Tamura Legna Verdecia | |
| -52 kg | Alessandra Giungi | Sharon Rendle | Maritza Pérez Cárdenas Matsumi Ueda | |
| -56 kg | Miriam Blasco | Nicole Flagothier | Nicola Fairbrother  Li Zhongyun | |
| -61 kg | Frauke Eickhoff | Diane Bell |  Yael Arad Catherine Fleury | |
| -66 kg | Emanuela Pierantozzi | Odalis Revé | Ryoko Fujimoto Kate Howey | |
| -72 kg | Kim Mi-jung | Yoko Tanabe | Laetitia Meignan Marion van Dorssen | |
| +72 kg | Moon Ji-yoon | Zhang Ying | Beata Maksymow Monique van der Lee | |
| Open | Zhuang Xiaoyan | Estela Rodriguez Villanueva | Nathalie Lupino Claudia Weber |