Last name Janlert (Janlert 
) , all around the world, is a very rare family name. The cognomen Janlert is habitual in Sweden, where it is a rare surname, and Thailand, where it is a very rare surname. Very seldom, Janlert is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Janlert | United States, Thailand, Sweden |