Surname Frostad-Thomas (Frostad-Thomas 
) , in the entire world, is an extremely rare family name. The cognomen Frostad-Thomas is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Frostad, and a first name Thomas.
| VARIANT | COUNTRY |
|---|---|
| Frostad-Thomas | United States |