| Abbreviation | Definition |
|---|---|
| NCBU | National Coalition of Barrios Unidos |
| NCC | National Cancer Coalition |
| NCC | National Clean Cities |
| NCC | National Constitution Center |
| NCC | Nature Conservancy of Canada |
| NCC | Neighborhood Capital Corporation |
| NCC | New Canadians Centre (Peterborough, Ontario) |
| NCCA | National Commission for the Certification of Acupuncturists |
| NCCA | National Community Capital Association |
| NCCAFV | National Council on Child Abuse and Family Violence |
| NCCBH | National Council for Community Behavioral Healthcare |
| NCCBH | National Council for Community Behavioral Healthcare - |
| NCCC | Nebraska Coalition for Compassionate Care |
| NCCF | National Childhood Cancer Foundation |
| NCCHC | National Commission on Correctional Health Care |
| NCCI | National Clean Cities, Inc. |
| NCCJ | National Conference for Community and Justice |
| NCCJ | National Conference of Christians and Jews (original name) |
| NCCLF | Northern California Community Loan Fund |
| NCCMERP | National Coordinating Council on Medication Error Reporting and Prevention |