Cognomen Namman (Namman 
) , in the entire world, is a rare last name. The surname Namman is characteristic of Thailand, where it is a rare surname, Philippines, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Likewise, Namman is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Namman | Philippines, India, Nigeria, United States, Thailand |