The 1991 FINA Men's World Water Polo Championship was the sixth edition of the event, organised by the world's governing body in aquatics, the FINA. The tournament was held from 3 January to 13 January 1991 and incorporated in the 1991 World Aquatics Championships, held in Perth, Australia.
- 13 January 1991 — Bronze Medal Match
- 13 January 1991 — Gold Medal Match
| 1991 FINA Men's World Champions
Mislav Bezmalinovic, Perica Bukic, Viktor Jelenic, Igor Milanovic, Vitomor Padovan, Dusan Popovic, Ranko Posinkovic, Goran Radjenovic, Dubravko Simenc, Aleksander Sostar, Vaso Subotic, Ante Vasovic, Mirko Vicevic 
- ^ "HistoFINA, Volume III: Medallists & Statistics, Special Water Polo, Before 2008 Season" (PDF). FINA.org (2007/2008 ed.). 2007. Retrieved 12 August 2014.
- HistoFINA (Volume VIII, Edition 2004)