Surname シム (Sim 
, シム 
, Simm ) , worldwide, is a widespread last name. The family name シム is characteristic of South-eastern Asia, particularly Malaysia, where it is a common surname, Singapore, and Brunei (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in South-eastern Asia, particularly Malaysia, Singapore, and Indonesia. Much less frequently, シム is the forename as well as the last name.