All over the world, سیم (Simu 
, سیم, Сым 
) is quite a common unisex forename. The first name سیم is characteristic of Bangladesh, where it is quite a rare dominantly girly, but seldom male name, Qatar, where it is a rare male name, and Ethiopia, where it is a rare dominantly male, but infrequently girly name. In absolute terms, it is commonest in India, Bangladesh, and Ethiopia. Likewise, سیم is the last name as well as the forename.