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Cognomen Tanchum (Tanchum , ตันชุ่ม) , across the world, is a rare last name. The family name Tanchum is habitual in Israel, where it is quite a rare surname, Thailand, where it is a very rare surname, and Australia. Not in comparison with a country's population, the name is most common in Israel, Thailand, and the United States. Also, Tanchum is the forename as well as the last name.