Last name นิจโรจน์ (นิจโรจน์ 
) , throughout the world, is an extremely rare cognomen. The last name นิจโรจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, นิจโรจน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| นิจโรจน์ | Thailand |