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Last name Wierzbicki (Wierzbicki ) , all over the world, is a common cognomen. The surname Wierzbicki is habitual in Poland, where it is quite a common surname, Ireland, where it is a rare surname, and the United States. Not in comparison with a country's population, this name is the most popular in Poland, the United States, and Germany. Also, Wierzbicki is the forename as well as the last name.