Family name Коцци (Cozzi 
, Коцци 
) , in the entire world, is a common surname. The surname Коцци is characteristic of Italy, where it is quite a common surname, Eswatini, and Argentina, where it is quite a rare surname. In absolute terms, it is commonest in Italy, Argentina, and the United States. Much less frequently, Коцци is the forename as well as the last name.