Family name Lutf (Lutf 
, لطف 
) , across the world, is quite a rare cognomen. The cognomen Lutf is characteristic of Western Asia, particularly Yemen, where it is quite a rare surname, Bahrain, and Saudi Arabia. Measured by absolute frequency, it is the most numerous in Yemen, Saudi Arabia, and Egypt. More prevalently, Lutf is the forename as well as the last name.