In this world map, you can check at a single glance which countries have more people with the surname Nian. As you can see, it's effortless to notice which countries have a higher number of people carrying the Nian surname.
Using graphic elements like this world map, to see in which countries or regions of the world the surname Nian is more common, is of great help.
The quantity of people with the surname Nian that we can find in each country can help us discern the origin of the surname Nian, as logic tells us that the place with the most people surnamed Nian will be the country or area of origin of the surname Nian.