Last name อุทธาหรณ์ (Uthak 
, อุทธาหรณ์ , Utthakrue ) , in the world, is a very rare cognomen. The last name อุทธาหรณ์ is characteristic of Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Very seldom, อุทธาหรณ์ is the forename as well as the last name.