Family name 鲁格 (Ruge 
, Ruegg 
, 鲁格 
) , in the world, is a common cognomen. The cognomen 鲁格 is characteristic of Switzerland, where it is quite a common surname, Colombia, where it is quite a rare surname, and Germany. Measured by absolute frequency, it most frequently occurs in Switzerland, the United States, and Germany. Much less frequently, 鲁格 is the forename as well as the last name.