In the entire world, Rullen (Rullen 
) is a very rare unisex forename. The first name Rullen is habitual in South-eastern Asia, particularly Philippines, where it is a very rare gender-neutral name. Also, Rullen is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rullen | Germany, Australia, Netherlands, United States, Philippines |