Cognomen Pattanakarn (Pattanakarn 
, พัฒนกลั่น, พัฒนครรชิต ) , all around the world, is a very rare surname. The surname Pattanakarn is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Pattanakarn is the forename as well as the last name.