Last name רורר (Rohrer 
, רורר 
) , in the world, is a common surname. The surname רורר is characteristic of Switzerland, where it is quite a common surname, Eswatini, and Liechtenstein (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in the United States, Switzerland, and Germany. Much less frequently, רורר is the forename as well as the last name.