Family name Кагия (Kagiya 
, Кагия 
) , in all the world, is a very rare last name. The family name Кагия is habitual in Brazil, where it is a very rare surname, Philippines, where it is an extremely rare surname, and Russia. In absolute terms, it is the most numerous in Brazil, China, and India. More prevalently, Кагия is the forename as well as the last name.