All around the world, Gai-Niangui (Gai-Niangui 
) is an extremely rare unknown gender given name. Much more frequently, Gai-Niangui is the last name as well as the forename. Parts of the name also exists independently as a last name Gai, and a last name Niangui.
| VARIANT | COUNTRY |
|---|---|
| Gai-Niangui | Democratic Republic of the Congo |