Surname Giselin (Giselin 
) , in all the world, is an extremely rare cognomen. The last name Giselin is characteristic of Israel, where it is a very rare surname, Nicaragua, and the United States, where it is an extremely rare surname. More frequently, Giselin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Giselin | France, Israel, Brazil, United States, Costa Rica |