Who is the winner of World chess championship under 10?

As of my last update in October 2023, the World Chess Championship for players under 10 does not have an official title like the senior World Chess Championship. Instead, various tournaments are held globally for younger age groups, organized by organizations like FIDE. The winners of these events can vary from year to year and are often recognized in their respective tournaments. For the most current champion, please check the latest updates from chess organizations or tournament results.