Surname Rhum (Rom 
, Rum 
, Rhum 
) , in the world, is a common family name. The cognomen Rhum is characteristic of Israel, where it is quite a common surname, Reunion, and Austria, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in Indonesia, Philippines, and India. Likewise, Rhum is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rom | Indonesia, Egypt, Philippines, United States, India |
| Rum | Indonesia, Algeria, Philippines, United States, India |
| Rhum | South Africa, Italy, Philippines, United States, France |
| Ром | Kazakhstan, Armenia, Russia, Ukraine |