Cognomen Scott-Sinclair (Scott-Sinclair 
) , in all the world, is an extremely rare last name. The cognomen Scott-Sinclair 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 first name Scott, and a last name Sinclair.
| VARIANT | COUNTRY |
|---|---|
| Scott-Sinclair | United States |