Last name اجان (Ajan 
, Egan 
, اجان 
) , around the world, is a common family name. The last name اجان is characteristic of Ireland, where it is a common surname, Australia, where it is quite a common surname, and the United Kingdom, where it is quite a rare surname. Measured by absolute frequency, the name is most common in the United States, Ireland, and the United Kingdom. Very seldom, اجان is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ajan | United Kingdom, Australia, India, Pakistan, United States |
| Egan | United Kingdom, Ireland, Australia, India, United States |
| اجان | Sudan, Iraq |