Surname מרקוני (Marconi 
, מרקוני 
) , worldwide, is a common family name. The cognomen מרקוני is habitual in Italy, where it is quite a common surname, Argentina, and Uruguay, where it is quite a rare surname. In absolute terms, it is commonest in Italy, Argentina, and Brazil. Also, מרקוני is the forename as well as the last name.