Cognomen Alhajin (Alhajin 
) , around the globe, is a very rare surname. The last name Alhajin is habitual in Sub-Saharan Africa, particularly Nigeria, where it is a very rare surname. Also, Alhajin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alhajin | Nigeria, Philippines |