In the entire world, Rilya (Rilya 
, Риля 
) is a rare primarily girly, but very infrequently boy's first name. The forename Rilya is habitual in Kazakhstan, where it is a very rare feminine name, Russia, and Indonesia. Measured by absolute frequency, it is commonest in Russia, Indonesia, and India. Much less frequently, Rilya is the last name as well as the forename.