Surname Taisir (تيسير 
, Taisir 
, Тайсир 
) , throughout the world, is quite a common last name. The last name Taisir is characteristic of Syria, where it is quite a rare surname, Sudan, and Iraq. Not in comparison with a country's population, it is commonest in Sudan, Egypt, and Iraq. More frequently, Taisir is the forename as well as the last name.