Cognomen ニックネーム (ニックネーム 
) , in all the world, is a very rare surname. The last name ニックネーム is habitual in Eastern Asia, particularly Japan, where it is a very rare surname. More frequently, ニックネーム is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ニックネーム | Japan |