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 | India, United States, Indonesia, Philippines, Egypt |
| Rum | India, United States, Indonesia, Philippines, Algeria |
| Rhum | United States, France, South Africa, Philippines, Italy |
| Ром | Ukraine, Russia, Armenia, Kazakhstan |