Surname Lethgau (Lethgau 
) , around the globe, is a very rare last name. The last name Lethgau is characteristic of Western Europe, particularly Germany, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Lethgau | Germany |
| erich lethgau 1940-2020, German sculptor, DE (b. 1940) |
|