Surname Gilmer-Mason (Gilmer-Mason 
) , in all the world, is an extremely rare family name. The last name Gilmer-Mason 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 first name Gilmer, and a last name Mason.
| VARIANT | COUNTRY |
|---|---|
| Gilmer-Mason | United States |