Last name Луизи (Luisi 
, Louisy 
, Луизи 
) , all over the world, is quite a common cognomen. The last name Луизи is habitual in Saint Lucia, where it is a common surname, Barbados, where it is quite a rare surname, and Italy. Not in comparison with a country's population, this name is the most popular in Italy, the United States, and France. Much less frequently, Луизи is the forename as well as the last name.