| Abbreviation | Definition |
|---|---|
| NSC | Northern Saddle Club |
| NSC | The No Scrubs Club |
| NSCA | National Shiba Club Of America |
| NSCM | National Science Club Month |
| NSFC | Northern Saints Football Club |
| NSJC | North Sea Jazz Club |
| NSJC | Nova Scotia Jeep Club |
| NSJC | Nutrition Society Journal Club |
| NSLSC | Newquay Surf Life Saving Club |
| NSRCC | National Service Resort & Country Club |
| NSSC | North Scottsdale Soccer Club |
| NSSC | North Shore Swim Club |
| NSSC | North Springfield Swim Club |
| NSSC | North State Shooting Club |
| NSSDC | North Star Sled Dog Club |
| NSSTC | North Star Ski Touring Club |
| NSTCC | North Shore Tai Chi Club |
| NSYC | Naples Sailing and Yacht Club |
| NSYC | North Shore Yacht Club |
| NTAC | New Town Alano Club |