Cognomen Gelsam (Gelsam 
) , throughout the world, is an extremely rare last name. The surname Gelsam is habitual in Chile, where it is a very rare surname, Brazil, where it is an extremely rare surname, and India. Also, Gelsam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gelsam | Philippines, Chile, United States, India, Brazil |