Cognomen Qasam (علوي 
, Qasam 
) , in the world, is a common last name. The cognomen Qasam is habitual in Iran, where it is quite a common surname, Palestinian Territory, and Yemen (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in Iran, Yemen, and Saudi Arabia. Also, Qasam is the forename as well as the last name.