Last name Хадая (Hadaia 
, Khadaya 
, Хадая 
) , all around the world, is a very rare family name. The surname Хадая is habitual in Russia, where it is an extremely rare surname, Venezuela, and Nigeria. Measured by absolute frequency, it most frequently occurs in Russia, Nigeria, and Mexico. More frequently, Хадая is the forename as well as the last name.