Cognomen Ilzar (Ильзар 
, Илзар , Ilzar 
) , throughout the world, is a very rare surname. The surname Ilzar is habitual in Kyrgyzstan, where it is a rare surname, Indonesia, where it is a very rare surname, and Mexico, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Indonesia, Kyrgyzstan, and India. More prevalently, Ilzar is the forename as well as the last name.