Surname Lamthi (Lamthi 
) , in the world, is a very rare family name. The surname Lamthi is habitual in Albania, where it is a rare surname, Greece, and Vietnam, where it is a very rare surname. Very seldom, Lamthi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lamthi | Italy, India, Greece, Vietnam, Albania |