Cognomen Royss (Royss 
) , throughout the world, is a very rare surname. The last name Royss is habitual in Morocco, where it is a very rare surname, Australia, and Germany, where it is an extremely rare surname. Much less frequently, Royss is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Royss | Germany, Australia, Morocco, United States, Peru |