Cognomen ปากเป็ด (Poaw 
, ปากเป็ด , Pakphain ) , all over the world, is an extremely rare last name. The last name ปากเป็ด is habitual in South-eastern Asia, particularly Malaysia, where it is an extremely rare surname, Thailand, and Philippines. Likewise, ปากเป็ด is the forename as well as the last name.