Cognomen ประยูรวรรณ (ประยูรวรรณ 
, Prayoonwan ) , all over the world, is a very rare family name. The cognomen ประยูรวรรณ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, ประยูรวรรณ is the forename as well as the last name.