Surname Plagia (Praja 
, Praia 
, Plage 
) , worldwide, is a common family name. The cognomen Plagia is habitual in Cabo Verde, where it is quite a common surname, Nepal, and Angola, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in Nepal, Indonesia, and India. Very seldom, Plagia is the forename as well as the last name.