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