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