Cognomen อรุนันท์ (Arunan 
, อรุนันท์ 
) , all over the world, is a rare last name. The cognomen อรุนันท์ is characteristic of Sri Lanka, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Malaysia. Measured by absolute frequency, the name is most common in Sri Lanka, Nigeria, and India. More frequently, อรุนันท์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Arunan | Malaysia, Sri Lanka, India, Nigeria, United Arab Emirates |
| อรุนันท์ | Thailand |