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Cognomen Clapa (Clapa ) , all over the world, is quite a rare last name. The family name Clapa is habitual in Romania, where it is quite a rare surname, Poland, where it is a rare surname, and Greece, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Romania, Poland, and the United States. Also, Clapa is the forename as well as the last name.