Last name Raucus (Rogall 
, Raucus, Rauc ) , around the world, is quite a rare cognomen. The surname Raucus is habitual in Chile, where it is quite a rare surname, Germany, and Poland, where it is a rare surname. In absolute terms, the name is most common in Germany, Chile, and the United States. Very seldom, Raucus is the forename as well as the last name.