Surname 加伦 (Garen 
, 加伦 
, Garren 
) , across the world, is quite a common cognomen. The family name 加伦 is characteristic of Ireland, where it is quite a common surname, Norway, where it is quite a rare surname, and New Zealand. Measured by absolute frequency, this name is the most popular in the United States, France, and Japan. Likewise, 加伦 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Garen | Japan, France, Spain, United States, India |
| 加伦 | China |
| Garren | Australia, France, Philippines, United Kingdom, United States |
| Gallen | France, Spain, United States, India, Ireland |