Across the world, Aday (عداي 
, Aday 
, Адай 
) is quite a common unisex first name. The forename Aday is habitual in Azerbaijan, where it is quite a rare male name, Iraq, and Kazakhstan. Not in comparison with a country's population, it is the most numerous in Iraq, Nigeria, and Spain. Much less frequently, Aday is the last name as well as the forename.