Family name ศุภฤทธิธำรง (ศุภฤทธิธำรง, Suparittitumrong 
) , in all the world, is an extremely rare last name. The surname ศุภฤทธิธำรง is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Suparittitumrong | Thailand |