Cognomen Liviu (Liviu 
, Ливиу 
, Лівіу 
) , worldwide, is a common surname. The family name Liviu is habitual in Romania, where it is quite a common surname, Moldova, where it is quite a rare surname, and Bosnia and Herzegovina. Measured by absolute frequency, it is commonest in Romania, Moldova, and Italy. More prevalently, Liviu is the forename as well as the last name.