Cognomen Нинна (Nnenna 
, Ninna 
, Нинна 
) , in the entire world, is a common surname. The surname Нинна is habitual in Nigeria, where it is quite a common surname, Japan, where it is quite a rare surname, and Niger, where it is a rare surname. In absolute terms, it is commonest in Nigeria, Japan, and Indonesia. Also, Нинна is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nnenna | Niger, Ghana, Nigeria, United States, Democratic Republic of the Congo |
| Ninna | Japan, Indonesia, Nigeria, India, Denmark |
| Нинна | Kyrgyzstan, Kazakhstan, Russia |