Water polo at the 2013 World Aquatics Championships – Men's tournament

The men's water polo tournament at the 2013 World Aquatics Championships, organised by the FINA, was held in the Piscines Bernat Picornell in Barcelona, Spain from 23 July to 3 August 2013.

Hungary won their third title by defeating Montenegro 8–7 in the final match.

Qualification
16 teams qualified for the world championships in 2013 as follows:
 * The host nation
 * The best 2 teams in the 2012 World League not already qualified as the host nation
 * The best 4 teams in the 2012 Olympics not already qualified as the host nation or from the World League
 * The best 3 teams in the 2012 European Championships not already qualified as the host nation, from the World League, or from the Olympics
 * The best 2 teams in the 2013 Americas Qualification Tournament not already qualified as the host nation, from the World League, or from the Olympics
 * The best 2 teams from Asia (qualification system yet to be organised) not already qualified as the host nation, from the World League, or from the Olympics
 * The best team from Africa (qualification system yet to be organised) not already qualified as the host nation, from the World League, or from the Olympics
 * The best team from Oceania (qualification system yet to be organised) not already qualified as the host nation, from the World League, or from the Olympics
 * If no team enters from a continent or if a team qualified as the host nation, from the World League, or from the Olympics does not enter, then each vacancy shall be filled by the next highest placed team(s) from the continental qualification tournament with the following rotation: Americas, Europe, Host Continent (Europe), Asia, Oceania and Africa.

Groups formed
The draw resulted in the following groups:

Bracket

 * 5th place bracket

Individual awards

 * Most Valuable Player
 * 🇭🇺 Dénes Varga


 * Best Goalscorer
 * Sandro Sukno / 🇲🇪 Aleksandar Ivović – 20 goals


 * Best Goalkeeper
 * 🇭🇺 Viktor Nagy


 * Media All-Star Team
 * 🇭🇺 Viktor Nagy – Goalkeeper
 * 🇷🇸 Duško Pijetlović – Centre forward
 * 🇮🇹 Pietro Figlioli
 * 🇲🇪 Aleksandar Ivović
 * 🇲🇪 Mlađan Janović
 * Sandro Sukno
 * 🇭🇺 Dénes Varga