Last name Piung (Peon 
, Piung 
, Peão 
) , in the world, is quite a rare cognomen. The last name Piung is characteristic of Argentina, where it is quite a rare surname, Uruguay, and Spain. Not in comparison with a country's population, the name is most common in Mexico, Argentina, and Spain. Much less frequently, Piung is the forename as well as the last name.