Last name Riswa (Riswa 
) , in the world, is a rare cognomen. The surname Riswa is characteristic of Indonesia, where it is a very rare surname, Malaysia, and Nigeria, where it is an extremely rare surname. Likewise, Riswa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riswa | Indonesia, Philippines, India, Malaysia, Nigeria |