Family name หิรัญกฤษฏิ์ (หิรัญกฤษฏิ์ 
) , all over the world, is an extremely rare surname. The cognomen หิรัญกฤษฏิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, หิรัญกฤษฏิ์ is the forename as well as the last name.