Family name Riysa (Riysa 
) , around the world, is a very rare last name. The cognomen Riysa is habitual in Malaysia, where it is a rare surname, and India, where it is an extremely rare surname. Also, Riysa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riysa | India, Malaysia, Philippines |