Surname Mekthanavanh (Mekthanavanh 
) , globally, is an extremely rare family name. The family name Mekthanavanh is habitual in Northern America, particularly the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Mekthanavanh | United States |
Emily, Alanya, Bounyou, Phayvanh, and Phouthavanh