Last name Nambai (Nambai 
) , all around the world, is a very rare surname. The surname Nambai is characteristic of Tanzania, where it is a very rare surname, Nigeria, where it is an extremely rare surname, and the United States. In absolute terms, it is commonest in Tanzania, India, and Nigeria. Likewise, Nambai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nambai | Philippines, India, Ecuador, Tanzania, Nigeria |