Surname Janase (Janase 
) , globally, is a very rare family name. The surname Janase is habitual in South Africa, where it is a very rare surname, Brazil, where it is an extremely rare surname, and India. Also, Janase is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Janase | Russia, South Africa, Philippines, India, Brazil |