Here is a selection of some cool names for cats starting with the letter R.
| Rabbit | Renee | Rodger |
| Rags | Rex | Rodrigo |
| Raider | Rhubarb | Roland |
| Rainbow | Rigsby | Rollo |
| Raindrop | Riley | Rolster |
| Ralph | Rinty | Roly |
| Rambo | Ringo | Romeo |
| Ramses | Ripley | Roscoe |
| Rascal | Robbie | Rudy |
| Raspberry | Robin | Ruffles |
| Raven | Rocket | Rufus |
| Redneck | Rockie | Rupert |
| Reggie | Rocky | Rusty |
| Remus |