Last name นิธิอรรถ (นิธิอรรถ 
) , across the world, is a very rare family name. The family name นิธิอรรถ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, นิธิอรรถ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| นิธิอรรถ | Thailand |