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Last name Tria (Tria
, تريا
, Trier
) , in the world, is a common surname. The cognomen Tria is habitual in Denmark, where it is quite a common surname, Philippines, where it is quite a rare surname, and Indonesia. Measured by absolute frequency, the name is most common in Indonesia, Philippines, and Germany. Also, Tria is the forename as well as the last name.