Family name Tohana (Tohana 
) , in the world, is quite a rare last name. The cognomen Tohana is characteristic of Japan, where it is quite a rare surname, Indonesia, where it is a very rare surname, and Canada. In absolute terms, the name is most common in Japan, Indonesia, and India. Much less frequently, Tohana is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tohana | Japan, Indonesia, Nigeria, India, Canada |