Family name Iaroslava (Ярослава 
, Iaroslava 
) , in the entire world, is a rare last name. The surname Iaroslava is characteristic of Kyrgyzstan, where it is a rare surname, Belarus, and Hungary. Measured by absolute frequency, it is commonest in Russia, Ukraine, and Kyrgyzstan. Predominantly, Iaroslava is the forename as well as the last name.