Surname 鲁瑟 (Reuther 
, Ruscher , 鲁瑟 
) , in all the world, is quite a common cognomen. The family name 鲁瑟 is characteristic of Germany, where it is quite a rare surname, Malta, and Denmark. Measured by absolute frequency, it most frequently occurs in Germany, the United States, and France. Very seldom, 鲁瑟 is the forename as well as the last name.