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Cognomen Йоп (Joop , Jop , Йоп ) , all around the world, is quite a common last name. The family name Йоп is characteristic of Senegal, where it is quite a rare surname, Guatemala, and Oman. In absolute terms, it is commonest in Senegal, Guatemala, and Poland. More prevalently, Йоп is the forename as well as the last name.