Family name Phetlavanh (Phetlavanh 
) , all around the world, is a rare surname. The cognomen Phetlavanh is characteristic of South-eastern Asia, particularly Laos, where it is quite a rare surname. Likewise, Phetlavanh is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phetlavanh | Laos, United States |