Thanks to this world map that shows the density of people with the surname Uu in different countries, you can get an idea not only of the popularity of the surname Uu in each country but also of the different migrations of people surnamed Uu.
The quantity of people with the surname Uu that we can find in each country can help us discern the origin of the surname Uu, as logic tells us that the place with the most people surnamed Uu will be the country or area of origin of the surname Uu.