| Sport | Water polo |
|---|---|
| Founded | 1973 (men) 1986 (women) |
| No. of teams | 16 (finals) |
| Continent | International (FINA) |
| Most recent champion(s) |  Croatia (men, 3rd title) United States (women, 8th title) |
| Most titles |  Hungary and  Italy(men; 4 titles each) United States (women; 8 titles) |
Water polo at the World Aquatics Championships is an international water polo tournament held every two years as part of the World Aquatics Championships.[1] The reigning champions are Croatia in men's and the United States in women's competition.[2]