Cognomen Nirawan (นิราวรรณ 
, Nirawan 
, นิรวรรณ ) , all around the world, is a rare last name. The last name Nirawan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname, Indonesia, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Indonesia, India, and Thailand. More prevalently, Nirawan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| นิราวรรณ, นิราวัลย์, นิรวรรณ | Thailand |
| Nirawan | China, Malaysia, Thailand, India, Indonesia |