Last name Thamr (ثامر 
, Thamr 
) , across the world, is a common cognomen. The last name Thamr is characteristic of Western Asia, particularly Iraq, where it is quite a common surname, Saudi Arabia, where it is quite a rare surname, and Jordan. In absolute terms, it is commonest in Western Asia, particularly Iraq, Saudi Arabia, and Yemen. Much more frequently, Thamr is the forename as well as the last name.