Family name Rung-Arun (Rung-Arun 
) , in the entire world, is an extremely rare cognomen. The surname Rung-Arun is habitual in South-eastern Asia, particularly Malaysia, where it is an extremely rare surname. Likewise, Rung-Arun is the forename as well as the last name. Parts of the name also exists independently as a first name Rung, and a first name Arun.
| VARIANT | COUNTRY |
|---|---|
| Rung-Arun | Malaysia, Thailand |