| Abbreviation | Definition |
|---|---|
| NPRC | Northern Piedmont Retriever Club |
| NPSC | Navy Patuxent Sailing Club |
| NPSC | New Providence Soccer Club |
| NRA | National Rifle Association |
| NRC | Nantahala Racing Club |
| NRC | Nike Run Club |
| NRFC | Newport Rugby Football Club |
| NRFC | North Ringwood Football Club |
| NRFC | Northern Rangers Football Club |
| NRFC | Northolt Rugby Football Club |
| NRPC | North Riding Point Club |
| NRPC | North River Pony Club |
| NRRC | National Rex Rabbit Club |
| NRRC | New Rochelle Racquet Club |
| NRSC | North Royalton Soccer Club |
| NRSTC | North River Shores Tennis Club |
| NRTC | North Ringwood Tennis Club (North Ringwood, VIC Australia) |
| NSAC | Nederlandse Studenten Alpen Club |
| NSAC | North Shore Aero Club |
| NSC | National Socialist Club |