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Cognomen الاين (Ain , Alayne , الاين) , across the world, is a common surname. The cognomen الاين is habitual in South-eastern Asia, particularly Brunei, where it is quite a common surname, Malaysia, and Singapore, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in Malaysia, Pakistan, and Indonesia. Also, الاين is the forename as well as the last name.