Family name นิไทย (Nithai 
, นิไทย 
) , all around the world, is an extremely rare cognomen. The last name นิไทย is characteristic of Israel, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and India. More frequently, นิไทย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nithai | Israel, Malaysia, India, United States |
| นิไทย | Thailand |