Note: Single-source report; awaiting corroboration.
The World Aquatics Men’s U18 Water Polo Championships 2026 is scheduled to take place in Rio Maior, Portugal, as noted on the official World Aquatics competition overview page.
This championship is for male water polo players under 18. Event schedules, medal tables, and rankings will be available on the World Aquatics website, displaying times in both local and user time zones. Currently, no specific competition data or event schedule has been published online.