Surname นิธินันทน์ (Nithinan 
, นิธินันทน์ , Nitinant ) , around the world, is a very rare cognomen. The last name นิธินันทน์ is characteristic of South-eastern Asia, particularly Singapore, where it is a rare surname, and Thailand. More frequently, นิธินันทน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nithinan | United Kingdom, United States, Thailand, Singapore, Australia |
| Nitinant, นิธินันทน์ | Thailand |
Nithonthan, and Nitinattana