Surname หยาดรุ้ง (Yardrung 
, หยาดรุ้ง) , all over the world, is an extremely rare family name. The cognomen หยาดรุ้ง is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, หยาดรุ้ง is the forename as well as the last name.