Worldwide, Melsin (Melsin 
) is a very rare epicene given name. The forename Melsin is habitual in Peru, where it is a very rare epicene name, Philippines, and India, where it is an extremely rare masculine name. Also, Melsin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Melsin | Honduras, Philippines, India, France, Peru |