Throughout the world, Ruzilia (Рузиля 
, Рузилиа , Ruzilia 
) is quite a common female first name. The forename Ruzilia is characteristic of Russia, where it is quite a rare feminine name, Kazakhstan, where it is a rare female name, and Kyrgyzstan. Not in comparison with a country's population, this name is the most popular in Russia, Kazakhstan, and Belarus. Very seldom, Ruzilia is the last name as well as the forename.