Family name Пио (Pio 
, Pío 
, Пио 
) , in the entire world, is a common last name. The surname Пио is characteristic of Cabo Verde, where it is quite a common surname, Nicaragua, where it is quite a rare surname, and Brazil. Measured by absolute frequency, it is the most numerous in Brazil, Mexico, and Philippines. Also, Пио is the forename as well as the last name.