Surname อุดมรัตนา (Udomratana 
, อุดมรัตนา ) , in the world, is a very rare last name. The surname อุดมรัตนา is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Likewise, อุดมรัตนา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Udomratana | United States, Thailand |
| อุดมรัตนา | Thailand |