Cognomen 德亚 (Dea 
, Deya 
, 德亚 ) , worldwide, is a common surname. The last name 德亚 is characteristic of Georgia, where it is quite a common surname, Albania, and Ireland, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Indonesia, China, and Kenya. More prevalently, 德亚 is the forename as well as the last name.