Cognomen מורוני (Moroni 
, מורוני 
) , all over the world, is a common surname. The last name מורוני is habitual in San Marino, where it is a common surname, Italy, where it is quite a common surname, and Argentina, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Italy, Argentina, and Brazil. Very seldom, מורוני is the forename as well as the last name.