Cognomen Khudayar (Khudayar 
, Худаяр 
) , throughout the world, is a rare last name. The last name Khudayar is habitual in Afghanistan, where it is a rare surname, Kyrgyzstan, and Canada, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Afghanistan, Kyrgyzstan, and India. Also, Khudayar is the forename as well as the last name.