Across the world, Вилян (Vilian 
, Vilyan 
, Viljan 
) is a rare largely male, but seldom female given name. The first name Вилян is characteristic of Bulgaria, where it is a rare boy's name, Romania, and Croatia. Not in comparison with a country's population, it is the most numerous in Brazil, Romania, and India. Very seldom, Вилян is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Vilian | Romania, Bulgaria, Brazil, Indonesia, Malaysia |
| Vilyan | Brazil, United States, India, Venezuela |
| Viljan | Philippines, United States, India, Malaysia, Croatia |
| Вилян | Russia |