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