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