| Abbreviation | Definition |
|---|---|
| NATA | Nuts About Tatting Association |
| NBAK | Neck Brace Appreciation Klub |
| NBF | National Birman Fanciers |
| NCAFGC | National Capital Area Federation of Garden Clubs |
| NCAH | National Collection of Animal Helminths |
| NCBBA | North Carolina Beach Buggy Association |
| NCCC | National Council of Corvette Clubs |
| NCCCPA | North Central Corvette Club of Pennsylvania |
| NCPCA | Northern California Power Cruiser Association |
| NDGA | National Depression Glass Association |
| NECA | National Entertainment Collectibles Association |
| NEIC | North East Immunology Club |
| NEOVC | North East Ohio Vette Club |
| NERB | North East Rod Builders |
| NERM | North East Riders Meet |
| NERO | New England Roleplaying Organization |
| NERS | New England Rug Society |
| NERS | North of England Rat Society |
| NETA | New England Trials Association |
| NEWER | North Eastern Wisconsin Exhibition Railroad club |