Cognomen ละหาร (Lahan 
, ละหาร 
) , in all the world, is quite a common family name. The surname ละหาร is characteristic of Qatar, where it is quite a rare surname, India, where it is a rare surname, and Saudi Arabia. Not in comparison with a country's population, it most frequently occurs in India, Indonesia, and Nigeria. Very seldom, ละหาร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lahan | Philippines, Brazil, India, Indonesia, Nigeria |
| ละหาร | Thailand |