| Abbreviation | Definition |
|---|---|
| NCCU | North Coast Credit Union |
| NCFCU | New Century Federal Credit Union |
| NCFCU | New Cumberland Federal Credit Union |
| NCFCU | Norfolk Community Federal Credit Union |
| NCFCU | North Country Federal Credit Union |
| NCFCU | Northcountry Cooperative Federal Credit Union |
| NCFCU | Northern Chautauqua Federal Credit Union |
| NCFCU | Northwest Consumers Federal Credit Union |
| NCGU | Norfolk County Golf Union |
| NCGU | Northern Cape Golf Union |
| NCGU | Northern Counties Golf Union |
| NCLU | National Council of Labor Unions |
| NCLU | Nebraska Civil Liberties Union |
| NCRU | North Carolina Rastafari Union |
| NCRU | North Carolina Rugby Union |
| NCU | National Cyclists Union |
| NCU | Nordic Cancer Union |
| NCU | Northern Cricket Union |
| NCUA | National Credit Union Administration |
| NCUA | National Credit Union Association |