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Cognomen Pennacchio (Pennacchio
, Penacho
) , in the entire world, is quite a rare surname. The family name Pennacchio is habitual in Italy, where it is quite a rare surname, Portugal, and Argentina, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Italy, the United States, and Argentina. Very seldom, Pennacchio is the forename as well as the last name.