The China women's national water polo team represents China in international women's water polo competitions and friendly matches. It is one of the leading teams in Asia.
The China men's national water polo team represents China in international water polo competitions and friendly matches. It is one of the leading teams in Asia.
The Greece men's national water polo team represents Greece in international men's water polo competitions and it is organized and run by the Hellenic Swimming Federation.
The South Africa men's national water polo team is the representative for South Africa in international men's water polo.
The Argentina men's national water polo team is Argentina's representative in international men's water polo.
The Malta men's national water polo team is the representative for Malta in international men's water polo.
Water polo at the 2009 World Aquatics Championships were held from July 19 to August 1, 2009, in Rome, Italy.
The water polo portion of the 2011 World Aquatics Championships was held between July 17–30 at the Shanghai Oriental Sports Center in Shanghai, China.
The New Zealand women's national water polo team represents the New Zealand in international women's water polo competitions and friendly matches.
The South Africa women's national water polo team represents the South Africa in international women's water polo competitions and friendly matches.
Water polo at the 2015 World Aquatics Championships was held between 26 July and 8 August 2015 in Kazan, Russia.
Water polo events at the 2017 World Aquatics Championships were held between 16 and 29 July 2017 in Budapest, Hungary.
Water polo at the 2019 World Aquatics Championships was held between 14 and 27 July 2019.
The men's water polo tournament at the 2019 World Aquatics Championships, organised by the FINA, was held in Gwangju, South Korea from 15 to 27 July. This was the eighteenth time that the men's water polo tournament has been played since the first edition in 1973.
Japan competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
Kazakhstan competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
South Korea competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
South Africa competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
The men's water polo tournament at the 2022 World Aquatics Championships was held from 21 June to 3 July 2022 in Budapest, Hungary. This was the 19th time that the men's water polo tournament has been played since the first edition in 1973.
