Family name المستور (المستور 
) , globally, is quite a rare surname. The last name المستور is characteristic of Northern Africa, particularly Libya, where it is quite a rare surname, Egypt, where it is a rare surname, and Sudan. In absolute terms, it is commonest in Egypt, Sudan, and Saudi Arabia.
| VARIANT | COUNTRY |
|---|---|
| المستور | Syria, Saudi Arabia, Libya, Sudan, Egypt |