Family name ລຕ (ລຕ 
) , throughout the world, is a very rare cognomen. The family name ລຕ is habitual in South-eastern Asia, particularly Laos, where it is a rare surname. More frequently, ລຕ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ລຕ | Laos |