Family name Федеричи (Federici 
, Федеричи 
) , in the entire world, is a common surname. The cognomen Федеричи is characteristic of Italy, where it is quite a common surname, Argentina, where it is quite a rare surname, and Luxembourg. Not in comparison with a country's population, it is the most numerous in Italy, the United States, and Argentina. Much less frequently, Федеричи is the forename as well as the last name.