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Last name origins & meanings:

  1. German: from Middle High German hane ‘rooster’, hence a nickname for a conceited or sexually active man. In some instances it may have been a habitational name from a house bearing the sign of a rooster.
  2. German: patronymic from a reduced form of the personal name Johannes (see John). This surname is also found in Denmark and Sweden.
  3. Jewish (Ashkenazic): ornamental name from German Hahn ‘rooster’, one of the many Ashkenazic surnames based on vocabulary words denoting birds or animals.