Cognomen 杰伦 (Jeroen 
, 杰伦 , Jaylon 
) , across the world, is quite a rare family name. The surname 杰伦 is habitual in Belgium, where it is quite a rare surname, Netherlands, where it is a rare surname, and Hungary. Measured by absolute frequency, it is the most numerous in China, Belgium, and Malaysia. Predominantly, 杰伦 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jeroen | China, Belgium, Taiwan, United States, Netherlands |
| 杰伦 | China |
| Jaylon | United Arab Emirates, Malaysia, Australia, Philippines, United States |
| Jielun | China, Singapore, Colombia, Taiwan, United States |