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Cognomen Guarino (Guarino
, Гуарино) , all over the world, is a common family name. The surname Guarino is characteristic of Italy, where it is quite a common surname, Uruguay, and Philippines, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Italy, Philippines, and the United States. Much less frequently, Guarino is the forename as well as the last name.