Family name Ванни (Vanni 
, Ванни 
) , all over the world, is a common surname. The last name Ванни is habitual in Italy, where it is quite a common surname, Finland, where it is quite a rare surname, and Paraguay. Not in comparison with a country's population, it most frequently occurs in Italy, Brazil, and Argentina. Likewise, Ванни is the forename as well as the last name.