Cognomen Raiskup (Raiskup 
) , in the entire world, is a very rare last name. The last name Raiskup is habitual in Germany, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Raiskup | Germany, United States |
| josef raiskup CZ (b. 1910) |
|
|
| ján ch. raiskup SK (b. 1924) |
|