Surname Лонги (Longi 
, Longhi , Лонги 
) , in the world, is a common cognomen. The surname Лонги is habitual in Italy, where it is quite a common surname, Argentina, where it is quite a rare surname, and Denmark. Not in comparison with a country's population, it most frequently occurs in Italy, Brazil, and Argentina. Much less frequently, Лонги is the forename as well as the last name.