Family name Pihi (Pihi 
) , in the entire world, is a rare last name. The cognomen Pihi is habitual in the Democratic Republic of the Congo, where it is a rare surname, Morocco, where it is a very rare surname, and South Africa, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in the Democratic Republic of the Congo, Morocco, and the United States. Very seldom, Pihi is the forename as well as the last name.