Family name ລດດາວນ (ລດດາວນ 
) , worldwide, is a rare cognomen. The cognomen ລດດາວນ is characteristic of South-eastern Asia, particularly Laos, where it is quite a rare surname. Predominantly, ລດດາວນ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ລດດາວນ | Laos |