Cognomen Udomc Hai (Udomc Hai 
) , around the world, is an extremely rare surname. The cognomen Udomc Hai is habitual in Northern America, particularly the United States, where it is an extremely rare surname. More frequently, Udomc Hai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Udomc Hai | United States |