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