Family name Roilin (Roilin 
) , in all the world, is an extremely rare surname. The cognomen Roilin is habitual in Latin America and the Caribbean, particularly Honduras, where it is a very rare surname, and Venezuela. More prevalently, Roilin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Roilin | Honduras, Dominican Republic, Malaysia, India, Costa Rica |