Surname Riël (Riël 
) , in the entire world, is an extremely rare family name. Much more frequently, Riël is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riël | South Africa, Netherlands |
De, Toit, Malan, Groot, Marais, Smeets, Leeuwen, Stornebrink, Notermans, and Molendorff