Family name Ngadia (Ngadia 
) , all around the world, is quite a rare last name. The cognomen Ngadia is characteristic of the Democratic Republic of the Congo, where it is quite a rare surname, Senegal, where it is a rare surname, and Morocco. Much less frequently, Ngadia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ngadia | Democratic Republic of the Congo, South Africa, Morocco, Senegal, Malaysia |