Cognomen Tochinai (Tochinai 
) , around the world, is quite a rare family name. The family name Tochinai is habitual in Japan, where it is quite a rare surname, and Philippines, where it is an extremely rare surname. Very seldom, Tochinai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tochinai | Japan, United States, Philippines |
| yoshiniko tochinai botanist (b. 1893) |
|