Family name פיירו (Piero 
, Pierrot 
, Pieru 
) , around the globe, is a common cognomen. The surname פיירו is characteristic of France, where it is quite a rare surname, Mauritius, and Luxembourg. Measured by absolute frequency, it most frequently occurs in France, Indonesia, and Italy. More prevalently, פיירו is the forename as well as the last name.