Last name Onuwaje (Onuwaje 
) , globally, is a rare surname. The last name Onuwaje is characteristic of Estonia, where it is a rare surname, Nigeria, and the United Kingdom, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Nigeria, the United States, and the United Kingdom. Also, Onuwaje is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onuwaje | Canada, United Kingdom, United States, Nigeria, Estonia |