In the entire world, Айдэр (Ayder 
, Айдэр 
) is a rare mostly boy's, but uncommonly girly given name. The forename Айдэр is characteristic of Costa Rica, where it is a rare boy's name, Peru, and Turkey, where it is a very rare gender-neutral name. Not in comparison with a country's population, it is commonest in Peru, Turkey, and China. Also, Айдэр is the last name as well as the forename.