Last name Gagerman (Gagerman 
) , in the world, is a very rare family name. The family name Gagerman is habitual in New Zealand, where it is a very rare surname, Israel, and the United States, where it is an extremely rare surname. Much less frequently, Gagerman is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gagerman | Canada, Israel, Spain, New Zealand, United States |