Family name ウォーレン (Warren 
, Woren 
, Wollen ) , in the entire world, is a widespread surname. The surname ウォーレン is habitual in Jersey, where it is a common surname, Marshall Islands, and Saint Vincent and the Grenadines, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, this name is the most popular in the United States, the United Kingdom, and Australia. Likewise, ウォーレン is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Warren | United Kingdom, Australia, United States, South Africa, Philippines |
| Woren | United States, India, South Africa, Canada, Philippines |
| Wollen | United Kingdom, Australia, United States, Canada, Philippines |
| ウォーレン | Japan |