Surname Аяко (Ayako 
, Ajako 
, Aiako ) , throughout the world, is quite a rare cognomen. The surname Аяко is characteristic of Kenya, where it is quite a rare surname, Japan, where it is a rare surname, and Singapore. Not in comparison with a country's population, it is the most numerous in Kenya, Japan, and China. Much more frequently, Аяко is the forename as well as the last name.