Cognomen ลูกค้า (Cliente 
, Lukkha 
, Cliant 
) , all over the world, is quite a rare family name. The family name ลูกค้า is characteristic of Andorra, where it is quite a rare surname, Paraguay, and El Salvador. Measured by absolute frequency, this name is the most popular in Latin America and the Caribbean, particularly Brazil, Guatemala, and Colombia. Also, ลูกค้า is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cliente | Colombia, Spain, Brazil, Afghanistan, Guatemala |
| Lukkha | Thailand, India |
| Cliant | United States, Philippines |