Family name マルコーニ (Marconi 
, マルコーニ) , around the world, is a common last name. The last name マルコーニ is habitual in Italy, where it is quite a common surname, Argentina, and Uruguay, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in Italy, Argentina, and Brazil. Also, マルコーニ is the forename as well as the last name.