Family name Фианна (Fianna 
, Фианна 
) , across the world, is a very rare last name. The cognomen Фианна is habitual in Israel, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and Spain. Not in comparison with a country's population, this name is the most popular in Nigeria, Brazil, and Venezuela. More frequently, Фианна is the forename as well as the last name.