Cognomen พัฒนรัชต์ (พัฒนรัชต์ 
) , throughout the world, is a very rare surname. The cognomen พัฒนรัชต์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, พัฒนรัชต์ is the forename as well as the last name.