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Cognomen Ritcher (Ritcher , Ритчер ) , in the world, is a rare last name. The cognomen Ritcher is habitual in Kazakhstan, where it is a rare surname, Canada, and Kyrgyzstan. Not in comparison with a country's population, the name is most common in the United States, Kazakhstan, and Russia. Much less frequently, Ritcher is the forename as well as the last name.