Cognomen סים (Sim 
, Siim 
, Simm ) , in the entire world, is a widespread surname. The surname סים is characteristic of South-eastern Asia, particularly Malaysia, where it is a common surname, Singapore, and Brunei (explore the name in all countries). Measured by absolute frequency, it is commonest in South-eastern Asia, particularly Malaysia, Singapore, and Indonesia. Very seldom, סים is the forename as well as the last name.