Surname קרופ (Krup 
, קרופ ) , in all the world, is a rare last name. The family name קרופ is characteristic of Israel, where it is quite a rare surname, Poland, where it is a rare surname, and Germany, where it is a very rare surname. In absolute terms, it most frequently occurs in the United States, India, and Israel. Much less frequently, קרופ is the forename as well as the last name.