Cognomen Audai (Audai 
) , in all the world, is a rare last name. The cognomen Audai is characteristic of Iraq, where it is a rare surname, Thailand, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Iraq, Thailand, and India. More frequently, Audai is the forename as well as the last name.