| Abbreviation | Definition |
|---|---|
| RNDS | Raw and Natural Dog Summit |
| ROF | Retrieve On the Flat |
| ROH | Retrieve Over the High jump |
| ROM | Register Of Merit |
| ROMP | Rescue Our Mill Pups |
| RROG | Rhodesian Ridgeback On Guard |
| RSDR | Rudozem Street Dog Rescue |
| RTTD | Run To The Dog |
| S | Sit |
| SAA | Speed, Agility, and Athleticism |
| SADS | Save A Dog Scheme |
| SASD | Saving Amarillo Shelter Dogs |
| SASD | Sibes And Sled Dogs |
| SBD | Saint Bernard Dogs |
| SBS | Special Boarding Service |
| SBT | Staffordshire Bull Terrier |
| SC | Senior Courser |
| SC | Show Category |
| SCDT | Sussex County Dog Training |
| SCOOP | Stop Crapping On Our Property |