Cognomen Ngallo (Ngallo 
) , across the world, is a rare last name. The last name Ngallo is characteristic of Tanzania, where it is a rare surname, the Democratic Republic of the Congo, and Greece, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Tanzania, the Democratic Republic of the Congo, and Indonesia. Much less frequently, Ngallo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ngallo | Democratic Republic of the Congo, China, Tanzania, Greece, Indonesia |