Cognomen Maasum (Maasum 
) , in all the world, is a rare surname. The last name Maasum is habitual in South-eastern Asia, particularly Malaysia, where it is a rare surname, Philippines, where it is a very rare surname, and Myanmar. Measured by absolute frequency, it is commonest in South-eastern Asia, particularly Malaysia, Philippines, and Indonesia. Likewise, Maasum is the forename as well as the last name.