Across the world, Koulach (Кулаш 
, Koulach) is quite a rare feminine given name. The first name Koulach is characteristic of Kazakhstan, where it is quite a common female name, Kyrgyzstan, where it is a rare predominantly girly, but very seldom male name, and Russia, where it is a very rare feminine name. Very seldom, Koulach is the last name as well as the forename.