All around the world, سیاه (Сия 
, Siyah 
, سیاه 
) is quite a rare largely female, but uncommonly masculine first name. The first name سیاه is habitual in Bulgaria, where it is quite a common female name, Algeria, where it is a rare gender-neutral name, and Iraq. Not in comparison with a country's population, it is the most numerous in Bulgaria, Indonesia, and Algeria. Likewise, سیاه is the last name as well as the forename.