Last name Katm (كاتم 
, كاطم , Katm 
) , across the world, is a rare cognomen. The last name Katm is habitual in Western Asia, particularly Iraq, where it is quite a rare surname, Oman, where it is a rare surname, and Saudi Arabia. In absolute terms, it is commonest in Iraq, Saudi Arabia, and Sudan. Much more prevalently, Katm is the forename as well as the last name.