In all the world, Swetla (Светла 
, Swetla 
) is quite a rare feminine first name. The forename Swetla is characteristic of Bulgaria, where it is quite a common girly name, Kazakhstan, where it is a very rare dominantly feminine, but seldom male name, and Russia, where it is a very rare primarily feminine, but very infrequently masculine name. Much less frequently, Swetla is the last name as well as the forename.