Last name کایا (Kaya 
, Qaya 
, کایا) , in the world, is a prevalent family name. The family name کایا is habitual in Turkey, where it is a prevalent surname, the Democratic Republic of the Congo, where it is a common surname, and Cyprus, where it is quite a common surname (explore the name in all countries). Not in comparison with a country's population, it is commonest in Turkey, the Democratic Republic of the Congo, and India. Much less frequently, کایا is the forename as well as the last name.