Worldwide, Mstor (مستور 
, Mstor 
) is quite a rare masculine first name. The first name Mstor is characteristic of Sudan, where it is quite a rare primarily boy's, but very infrequently girly name, Saudi Arabia, and Libya, where it is quite a rare masculine name. Not in comparison with a country's population, it is commonest in Egypt, Sudan, and Saudi Arabia. Also, Mstor is the last name as well as the forename.