Last name Qalb (Qalb 
) , in the entire world, is a rare cognomen. The last name Qalb is characteristic of Egypt, where it is a rare surname, Saudi Arabia, and Iraq, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Egypt, Pakistan, and Saudi Arabia. Also, Qalb is the forename as well as the last name.