Surname โชติอรุณ (โชติอรุณ 
, Chotarun , Chotiarun ) , all over the world, is a very rare last name. The last name โชติอรุณ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, โชติอรุณ is the forename as well as the last name.