Cognomen Naochika (Naochika 
) , in all the world, is a very rare surname. The surname Naochika is habitual in Germany, where it is an extremely rare surname, and China. Much less frequently, Naochika is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Naochika | United States, Germany, China, Brazil |
| ōsawa naochika (b. 1624) |
|