Cognomen Deaton-Grein (Deaton-Grein 
) , in the world, is an extremely rare family name. The last name Deaton-Grein 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 Deaton, and a last name Grein.
| VARIANT | COUNTRY |
|---|---|
| Deaton-Grein | United States |