Cognomen الأب (Alab 
, الأب 
) , across the world, is quite a rare family name. The family name الأب is habitual in Philippines, where it is quite a rare surname, Libya, where it is a rare surname, and Qatar. Not in comparison with a country's population, this name is the most popular in Philippines, Saudi Arabia, and Sudan. Very seldom, الأب is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alab | Sudan, Saudi Arabia, Philippines, Pakistan, India |
| الأب | Syria, Sudan, Egypt, Libya, Algeria |