Last name รุม (Rum 
, รุม 
, Rumnum ) , around the world, is quite a common cognomen. The family name รุม is characteristic of Indonesia, where it is quite a rare surname, Malaysia, and Estonia. In absolute terms, this name is the most popular in Indonesia, Malaysia, and India. Also, รุม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rum | Myanmar, Italy, Indonesia, Malaysia, India |
| รุม, Rumnum | Thailand |