Last name Piina (Pina 
, Poena 
, Piina ) , around the world, is a common surname. The surname Piina is habitual in Cabo Verde, where it is a prevalent surname, Portugal, where it is quite a common surname, and Guinea-Bissau (explore the name in all countries). In absolute terms, the name is most common in Brazil, the United States, and Portugal. Also, Piina is the forename as well as the last name.