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Family name Piroh (Piroh ) , globally, is a rare cognomen. The cognomen Piroh is habitual in Slovakia, where it is quite a rare surname, Slovenia, where it is a rare surname, and Croatia, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Slovakia, Indonesia, and the United States. Very seldom, Piroh is the forename as well as the last name.