Cognomen Nawaroj (นวโรจน์ 
, Nawaroj 
) , across the world, is an extremely rare family name. The cognomen Nawaroj is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, Nawaroj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| นวโรจน์ | Thailand |
| Nawaroj | China, Thailand |