Family name Marcilin (Marcilin 
) , around the world, is a very rare last name. The last name Marcilin is characteristic of Southern Asia, particularly India, where it is an extremely rare surname. More frequently, Marcilin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Marcilin | South Africa, Canada, Philippines, United States, India |