Around the world, Niltha (Niltha 
) is a very rare girly first name. The forename Niltha is habitual in Southern Asia, particularly India, where it is an extremely rare girly name. Much less frequently, Niltha is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Niltha | India, United States, Brazil, Venezuela |
Costa, Rivera, Mathias, and Schloeffel