Cognomen Fetu-Ao (Fetu-Ao 
) , all around the world, is an extremely rare last name. Much more prevalently, Fetu-Ao is the forename as well as the last name. Parts of the name also exists independently as a last name Fetu, and a last name Ao.
| VARIANT | COUNTRY |
|---|---|
| Fetu-Ao | United States |