Family name Кавайа (Kawaya 
, Кавайа 
) , all over the world, is quite a rare surname. The surname Кавайа is habitual in Namibia, where it is quite a rare surname, Zambia, and Japan. Not in comparison with a country's population, it is commonest in Japan, the Democratic Republic of the Congo, and Tanzania. Very seldom, Кавайа is the forename as well as the last name.