In all the world, Welin (Welin 
) is a rare unisex first name. The given name Welin is habitual in the Dominican Republic, where it is quite a rare boy's name, Peru, where it is a very rare male name, and Philippines, where it is a very rare gender-neutral name. Not in comparison with a country's population, this name is the most popular in the Dominican Republic, Indonesia, and Philippines. More frequently, Welin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Welin | Sweden, Finland, Indonesia, United States, Dominican Republic |