Last name غلاك (غلاك 
, Glac 
) , in all the world, is quite a common cognomen. The family name غلاك is characteristic of Western Asia, particularly Oman, where it is quite a common surname, Saudi Arabia, where it is quite a rare surname, and Jordan. Not in comparison with a country's population, the name is most common in Saudi Arabia, Egypt, and Iraq. Likewise, غلاك is the forename as well as the last name.