World Aquatics Men’s Water Polo World Cup 2027 – Division 1 tournament will take place from 11th to 16th January 2027 in Istanbul, Türkiye, followed by the Division 2 tournament.
Group A: Italy, Serbia, Greece, United States
Group B: Hungary, Croatia, Montenegro, Spain
The first three competition days will feature round-robin matches within each group, where the top two teams will advance to a second group phase that will determine the final Division 1 standings. As hosts of the event, Greece automatically qualify for the World Cup Finals. As a result, the top five teams in the second group phase will secure their place in the World Cup Final in Athens.