Family name อรุ (Aru 
, อรุ 
) , in the entire world, is a common last name. The last name อรุ is habitual in Vanuatu, where it is a common surname, Estonia, where it is quite a common surname, and Maldives, where it is quite a rare surname. Not in comparison with a country's population, it most frequently occurs in India, Italy, and Indonesia. Also, อรุ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Aru | Estonia, Italy, India, Indonesia, Turkey |
| อรุ | Thailand |