Throughout the world, Ngamnoi (Ngamnoi 
) is a very rare female given name. The forename Ngamnoi is habitual in Southern Asia, particularly India, where it is an extremely rare girly name. Much less frequently, Ngamnoi is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ngamnoi | India, United States, Thailand |
Joham, Wangsa, Wangsu, Kittichitt, and Prakaiwichian