Family name לואיג'י (Luigi 
, Luiggi 
, לואיג'י 
) , worldwide, is a common last name. The surname לואיג'י is characteristic of San Marino, where it is quite a common surname, Italy, and Venezuela, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Italy, Venezuela, and France. Much more prevalently, לואיג'י is the forename as well as the last name.