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 | Germany, Ethiopia, Sudan, Nigeria, India |
| Haco | Germany, Turkey, Syria, Nigeria, India |
| حاجو | Syria, Sudan, Egypt, Lebanon, Iraq |