Globally, لويزي (Loisi 
, Luizi 
, Louisi ) is quite a rare girly first name. The given name لويزي is habitual in Tanzania, where it is a rare girly name, Georgia, where it is a rare gender-neutral name, and the Democratic Republic of the Congo, where it is a rare female name. Not in comparison with a country's population, this name is the most popular in Brazil, Tanzania, and the Democratic Republic of the Congo. Also, لويزي is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Loisi | Brazil, Tanzania, Argentina, United States, Italy |
| Luizi | Brazil, Angola, Morocco, Democratic Republic of the Congo, Italy |
| Louisi | Brazil, Argentina, United States, Morocco, Democratic Republic of the Congo |
| لويزي | Egypt, Iraq, Morocco |