Surname อุดมฤทธิรุจ (อุดมฤทธิรุจ 
) , globally, is an extremely rare last name. The surname อุดมฤทธิรุจ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| อุดมฤทธิรุจ | Thailand |
| นายกำธร อุดมฤทธิรุจ ambassador of Thailand to Indonesia 1986 – 1990, TH |
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