Surname اسو (Aso 
, اسو 
) , across the world, is a common cognomen. The last name اسو is habitual in Iraq, where it is quite a common surname, Algeria, where it is quite a rare surname, and Libya. In absolute terms, it is commonest in Iraq, Nigeria, and Algeria. Likewise, اسو is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Aso | Egypt, Algeria, Nigeria, India, Iraq |
| اسو | Egypt, Syria, Sudan, Iraq, Saudi Arabia |