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Cognomen Kusnir (Kusnir ) , around the globe, is quite a rare surname. The cognomen Kusnir is habitual in Slovakia, where it is quite a common surname, Estonia, where it is quite a rare surname, and Czechia, where it is a rare surname. In absolute terms, this name is the most popular in Slovakia, the United States, and Czechia. Very seldom, Kusnir is the forename as well as the last name.