The quantity of people with the surname Dii that we can find in each country can help us discern the origin of the surname Dii, as logic tells us that the place with the most people surnamed Dii will be the country or area of origin of the surname Dii.
Globalization can make the surname Dii be found in almost every country around the globe, but being able to see the density of people residing in a country with the surname Dii greatly aids all those who seek a deeper knowledge about the surname Dii.