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