Family name Tiberiu (Tiberiu 
, Тибериу 
, Тіберіу 
) , all over the world, is quite a common surname. The cognomen Tiberiu is habitual in Romania, where it is quite a common surname, Israel, where it is quite a rare surname, and Slovakia, where it is a rare surname. In absolute terms, this name is the most popular in Romania, Israel, and Spain. More frequently, Tiberiu is the forename as well as the last name.