Surname Ilyana (Ilyana 
, Иляна 
, Ильяна ) , throughout the world, is quite a rare last name. The surname Ilyana is characteristic of Malaysia, where it is a rare surname, Algeria, and Kyrgyzstan. Measured by absolute frequency, the name is most common in Indonesia, Algeria, and Malaysia. More prevalently, Ilyana is the forename as well as the last name.