The quantity of people with the surname Préno that we can find in each country can help us discern the origin of the surname Préno, as logic tells us that the place with the most people surnamed Préno will be the country or area of origin of the surname Préno.
Locating at a single glance the countries where the surname Préno is more abundant, as well as the areas of the globe where there are hardly any people with the surname Préno, is of great utility for individuals interested in surnames, and specifically in the surname Préno, as it allows them to quickly and easily visualize the data and its distribution."