Family name Janouski (Janouski 
) , all around the world, is a very rare surname. The family name Janouski is characteristic of Argentina, where it is a very rare surname, the United States, where it is an extremely rare surname, and Brazil. Very seldom, Janouski is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Janouski | Argentina, Brazil, United States |