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Family name Zatko (Zatko
, Затько
) , throughout the world, is quite a rare last name. The cognomen Zatko is characteristic of Slovakia, where it is quite a common surname, Czechia, where it is quite a rare surname, and Croatia, where it is a rare surname. In absolute terms, it is the most numerous in Slovakia, Czechia, and the United States. Very seldom, Zatko is the forename as well as the last name.