MEN:

Teams qualified:

China (Host nation)

US (winner of the Pan American Games)

Croatia (winner of the World Championships )

Hungary (runner-up of the World Championships)

Spain (third of the World Championships)

Serbia (Champion of World League)

Australia (winner of Oceania series)

Montenegro (winner of European Water Polo Qualification Tournament)

Germany

Greece

Italy

Canada

WOMEN:

Teams qualified:

China (Host nation)

US (winner of the Pan American Games)

Australia (winner of Oceania series)

Netherlands(winner of European Water Polo Qualification Tournament)

Australia

Russia

Hungary

Italy

Greece