Cognomen Rueh (Rueh 
) , around the globe, is a very rare family name. The surname Rueh is habitual in Slovenia, where it is a rare surname, Malaysia, where it is a very rare surname, and Germany, where it is an extremely rare surname. In absolute terms, it most frequently occurs in the United States, Slovenia, and Malaysia. Very seldom, Rueh is the forename as well as the last name.