Family name حاجو (Hajo 
, Haco 
, حاجو 
) , all around the world, is quite a common surname. The cognomen حاجو is characteristic of Lebanon, where it is quite a rare surname, Syria, and Sudan. In absolute terms, it is commonest in Sudan, Ethiopia, and Syria. Also, حاجو is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hajo | Sudan, Ethiopia, India, Nigeria, Germany |
| Haco | India, Syria, Nigeria, Germany, Turkey |
| حاجو | Sudan, Syria, Iraq, Egypt, Lebanon |