Family name ヤイ (Yayi 
, ヤイ 
) , globally, is quite a common last name. The last name ヤイ is habitual in 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 most frequently occurs in India, Benin, and Cameroon. Likewise, ヤイ is the forename as well as the last name.