Surname นิยมในธรรม (นิยมในธรรม 
, Niyomnaidham) , around the world, is a very rare family name. The family name นิยมในธรรม is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| นิยมในธรรม | Thailand |