Last name Oranu (Oranu 
) , throughout the world, is a rare cognomen. The last name Oranu is habitual in Nigeria, where it is a rare surname, the United Kingdom, where it is a very rare surname, and Germany, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Nigeria, the United Kingdom, and the United States. Likewise, Oranu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oranu | Germany, United States, United Kingdom, India, Nigeria |