In the world, อุทุมรัตน์ (อุทุมรัตน์ 
) is a very rare mostly female, but infrequently male first name. The first name อุทุมรัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare mostly feminine, but uncommonly masculine name. More frequently, อุทุมรัตน์ is the last name as well as the forename.