In all the world, Сиден (Siden 
, Сиден 
) is a rare largely male, but infrequently female first name. The given name Сиден is habitual in Indonesia, where it is a very rare boy's name, Philippines, where it is a very rare epicene name, and India, where it is an extremely rare unisex name. More prevalently, Сиден is the last name as well as the forename.