Surname Onova (Onova 
) , around the world, is a very rare cognomen. The cognomen Onova is habitual in Bulgaria, where it is a rare surname, Nigeria, where it is a very rare surname, and Colombia. Also, Onova is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onova | Nigeria, Colombia, Bulgaria, United States, India |