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Last name Iacono (Iacono
, Яконо
) , globally, is a common cognomen. The family name Iacono is habitual in Italy, where it is quite a common surname, Argentina, where it is quite a rare surname, and Australia. Measured by absolute frequency, this name is the most popular in Italy, the United States, and Argentina. Very seldom, Iacono is the forename as well as the last name.