The quantity of people with the surname Vai that we can find in each country can help us discern the origin of the surname Vai, as logic tells us that the place with the most people surnamed Vai will be the country or area of origin of the surname Vai.
Globalization can make the surname Vai 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 Vai greatly aids all those who seek a deeper knowledge about the surname Vai.