Family name Kadya (Kadya 
, Кадя 
) , across the world, is a rare last name. The family name Kadya is characteristic of Bahrain, where it is quite a rare surname, Ukraine, where it is a very rare surname, and Israel. Not in comparison with a country's population, it is commonest in India, Indonesia, and Ukraine. More prevalently, Kadya is the forename as well as the last name.