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Family name Kayano (Kayano , Каяно, Каыано ) , worldwide, is a rare cognomen. The family name Kayano is characteristic of Brazil, where it is a rare surname, Japan, where it is a very rare surname, and Chile. Not in comparison with a country's population, this name is the most popular in Brazil, Japan, and the United States. Likewise, Kayano is the forename as well as the last name.