Cognomen יוניוס (Junius 
, Iunius 
, יוניוס ) , in the world, is quite a rare last name. The surname יוניוס is habitual in Namibia, where it is quite a common surname, Liberia, where it is quite a rare surname, and Luxembourg. In absolute terms, this name is the most popular in Indonesia, Malaysia, and Namibia. Also, יוניוס is the forename as well as the last name.