Last name อุ่นอนงค์ (Oonanong 
, อุ่นอนงค์) , in all the world, is an extremely rare cognomen. The last name อุ่นอนงค์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, อุ่นอนงค์ is the forename as well as the last name.