Family name Stone-Humphries (Stone-Humphries 
) , throughout the world, is an extremely rare last name. The family name Stone-Humphries is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Stone, and a last name Humphries.
| VARIANT | COUNTRY |
|---|---|
| Stone-Humphries | United States |