Family name Khaia (Хая 
, Khaia 
) , in all the world, is a rare surname. The cognomen Khaia is habitual in Morocco, where it is a rare surname, Ukraine, and Australia, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Morocco, Ukraine, and India. More frequently, Khaia is the forename as well as the last name.