Cognomen Луїджі (Luigi 
, Луїджі 
) , worldwide, is a common surname. The last name Луїджі is characteristic of San Marino, where it is quite a common surname, Italy, and Venezuela, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in Italy, Venezuela, and the United States. Much more prevalently, Луїджі is the forename as well as the last name.