Worldwide, Гайдар (Гайдар 
, Gajdar 
, Gaidar 
) is quite a rare boy's first name. The given name Гайдар is characteristic of Azerbaijan, where it is quite a rare masculine name, Kazakhstan, and Kyrgyzstan, where it is a rare mostly masculine, but uncommonly female name. Measured by absolute frequency, this name is the most popular in India, Kazakhstan, and Azerbaijan. Likewise, Гайдар is the last name as well as the forename.