Across the world, Luiso (Luiso 
) is a rare primarily male, but scarcely female forename. The forename Luiso is characteristic of Albania, where it is a rare male name, Panama, and the Dominican Republic. In absolute terms, it is commonest in Italy, Albania, and Panama. More frequently, Luiso is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Luiso | Philippines, Argentina, Spain, Italy, United States |