Cognomen 디아 (Diah 
, Dia 
, 디아) , throughout the world, is a widespread last name. The last name 디아 is characteristic of Senegal, where it is a common surname, Mauritania, and Lebanon, where it is quite a common surname (explore the name in all countries). Not in comparison with a country's population, the name is most common in Senegal, Indonesia, and Algeria. Also, 디아 is the forename as well as the last name.