Cognomen Ruyah (Ruyah 
) , all around the world, is a rare family name. The last name Ruyah is habitual in Malaysia, where it is a rare surname, Indonesia, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Very seldom, Ruyah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruyah | Indonesia, Malaysia, Nigeria, United States, India |