Cognomen ลาวัณห์ (Lavanh 
, ลาวัณห์ ) , throughout the world, is quite a rare last name. The surname ลาวัณห์ is characteristic of Laos, where it is quite a common surname, Italy, where it is an extremely rare surname, and Thailand. Measured by absolute frequency, the name is most common in Laos, the United States, and Italy. Likewise, ลาวัณห์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lavanh | Italy, Laos, United States, Thailand, Canada |
| ลาวัณห์ | Thailand |