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Last name Haab (هاب
, 哈布
, Haab
) , in all the world, is quite a rare cognomen. The family name Haab is characteristic of Switzerland, where it is quite a rare surname, Estonia, and Germany, where it is a rare surname. Measured by absolute frequency, the name is most common in Switzerland, Germany, and the United States. Much less frequently, Haab is the forename as well as the last name.