Family name Al-Hajaj (Al-Hajaj 
) , all over the world, is a very rare cognomen. The cognomen Al-Hajaj is characteristic of Jordan, where it is a rare surname, Iraq, where it is a very rare surname, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Iraq, Jordan, and Germany. Parts of the name also exists independently as a first name Al, and a last name Hajaj.
| VARIANT | COUNTRY |
|---|---|
| Al-Hajaj | Germany, United Kingdom, Canada, Jordan, Iraq |