Family name Jannesen (Jannesen 
) , globally, is a very rare last name. The family name Jannesen is habitual in Netherlands, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and the United States. Much less frequently, Jannesen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jannesen | United States, Netherlands, Venezuela, Philippines |