Family name Gagum (Gagum 
) , in all the world, is a rare last name. The family name Gagum is habitual in the United States, where it is a very rare surname, Nigeria, and India, where it is an extremely rare surname. Also, Gagum is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gagum | India, United States, Nigeria |