Last name Deuš (Деуш 
, Deuš 
) , all over the world, is a very rare cognomen. The last name Deuš is habitual in Croatia, where it is a rare surname, Ukraine, where it is a very rare surname, and Kazakhstan. In absolute terms, it most frequently occurs in Russia, Ukraine, and Croatia. Very seldom, Deuš is the forename as well as the last name.