Family name อุดมฤกษ์ (Rich 
, อุดมฤกษ์ 
) , in all the world, is a common cognomen. The surname อุดมฤกษ์ is habitual in Vanuatu, where it is quite a common surname, Isle of Man, and Ghana (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in the United States, Ghana, and the United Kingdom. Likewise, อุดมฤกษ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rich | United States, Ghana, United Kingdom, Indonesia, Democratic Republic of the Congo |
| อุดมฤกษ์ | Thailand |