Cognomen Poyn (Puing 
, Poyn ) , across the world, is quite a rare last name. The family name Poyn is characteristic of South-eastern Asia, particularly Myanmar, where it is quite a rare surname, Philippines, where it is a rare surname, and Malaysia, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in South-eastern Asia, particularly Myanmar, Philippines, and Indonesia. Much less frequently, Poyn is the forename as well as the last name.