Surname Niyomkar (Niyomkar 
) , in the entire world, is a very rare cognomen. The last name Niyomkar is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Niyomkar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Niyomkar | United States, Thailand |