Cognomen Ritoper (Ritoper 
) , all around the world, is a very rare family name. The cognomen Ritoper is characteristic of Austria, where it is a rare surname, Hungary, where it is a very rare surname, and Croatia. Not in comparison with a country's population, it is commonest in Austria, France, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Ritoper | Germany, Austria, Hungary, United States, France |