Family name Viella (Viele 
, Viella 
) , in the entire world, is quite a rare cognomen. The cognomen Viella is characteristic of Liechtenstein, where it is quite a rare surname, Italy, where it is a rare surname, and the United States. Measured by absolute frequency, it is commonest in the United States, the Democratic Republic of the Congo, and Italy. Much less frequently, Viella is the forename as well as the last name.