Surname รุ่งจรรยากิจ (รุ่งจรรยากิจ, Rungchanyakit 
) , all around the world, is a very rare cognomen. The surname รุ่งจรรยากิจ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rungchanyakit | Thailand |