In the world, Sebast (Sebast 
) is a very rare masculine given name. The forename Sebast is habitual in Singapore, where it is a rare male name, Colombia, where it is a very rare boy's name, and France. Likewise, Sebast is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sebast | Germany, Colombia, United States, France, Democratic Republic of the Congo |