Cognomen Gnanhoue (Gnanhoue 
) , across the world, is a rare family name. The last name Gnanhoue is habitual in Benin, where it is quite a rare surname, and France, where it is a very rare surname. Much less frequently, Gnanhoue is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gnanhoue | Nigeria, France, Benin |