Last name يايي (Yayi 
, يايي) , in the world, is quite a common family name. The cognomen يايي is characteristic of Sub-Saharan Africa, particularly Benin, where it is quite a rare surname, Cameroon, and Ivory Coast, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in India, Benin, and Cameroon. Also, يايي is the forename as well as the last name.