Surname อารุม (Arum 
, อารุม 
) , in the world, is a common last name. The surname อารุม is habitual in Indonesia, where it is quite a common surname, Macao, where it is quite a rare surname, and Brunei. Not in comparison with a country's population, it is commonest in Indonesia, Nigeria, and Kenya. Also, อารุม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Arum | Indonesia, Taiwan, Kenya, South Korea, Nigeria |
| อารุม | Thailand |