| Abbreviation | Definition |
|---|---|
| MSL | Mechanized Skirmish League |
| MSTF | Memphremagog Ski Touring Foundation |
| MYSL | Minnesota Youth Ski League |
| NARF | Native American Redskins Fans |
| NARN | Native American Redskins Nation |
| NASC | National Alpine Ski Camp |
| NASSA | North American Stone Skipping Association |
| NBS | National Brotherhood of Skiers |
| NJSC | New Jersey Ski Council |
| NMU | Northern Michigan University |
| NNSC | Nooksack Nordic Ski Club |
| NNSL | National Ski League |
| NSAA | National Ski Areas Association |
| NSAA | Nordic Skiing Association of Anchorage |
| NSC | National Ski Council |
| NSCC | Northwest Ski Club Council |
| NSCF | Nordic Ski Club of Fairbanks |
| NSL | National Ski League |
| NSP | National Ski Patrol |
| NSSTC | North Star Ski Touring Club |