Surname Penia (Penia 
, Пеня 
) , worldwide, is a rare last name. The surname Penia is characteristic of Ukraine, where it is a rare surname, the Dominican Republic, and the Democratic Republic of the Congo. Not in comparison with a country's population, this name is the most popular in Ukraine, the Democratic Republic of the Congo, and Russia. Very seldom, Penia is the forename as well as the last name.