Family name Ngwashi (Ngwashi 
) , in all the world, is a rare cognomen. The surname Ngwashi is characteristic of Cameroon, where it is a rare surname, the United Kingdom, where it is a very rare surname, and the United States, where it is an extremely rare surname. Also, Ngwashi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ngwashi | United Kingdom, Cameroon, United States, Tanzania |