Last name لوثي (Luthi 
, لوثي) , across the world, is a common cognomen. The family name لوثي is habitual in Switzerland, where it is a common surname, Eswatini, where it is quite a common surname, and South Africa, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Switzerland, the United States, and France. Much less frequently, لوثي is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Luthi | Eswatini, Switzerland, France, United States, South Africa |