Throughout the world, Yerna (Ерна 
, Yerna 
) is a rare principally feminine, but very seldom masculine first name. The first name Yerna is characteristic of Bulgaria, where it is a rare feminine name, Ukraine, and Kazakhstan, where it is a very rare feminine name. Not in comparison with a country's population, the name is most common in Ukraine, Indonesia, and Bulgaria. Also, Yerna is the last name as well as the forename.