| NCAC | Nashville Career Advancement Center 
| Others |
| NCAC | National Cadet Advisory Council
| Others |
| NCAC | National Capital Area Chapter
| Others |
| NCAC | National Capital Area Council
| Others |
| NCAC | National Career Academy Coalition
| Others |
| NCAC | National Childcare Accreditation Council
| Others |
| NCAC | National Children's Advocacy Center
| Others |
| NCAC | National Coalition Against Censorship
| Others |
| NCAC | National Consumer Assistance Center
| Others |
| NCAC | National Copyright Administration of China
| Others |
| NCAC | National Council of Acoustical Consultants
| Others |
| NCAC | National Crash Analysis Center
| Others |
| NCAC | National Cyber Analyst Challenge
| Others |
| NCAC | Neighborhood Conservation Advisory Committee
| Others |
| NCAC | Nevada County Arts Council
| Others |
| NCAC | Nonprofit Community Assistance Center
| Others |
| NCAC | North Carolina Administrative Code
| Others |
| NCAC | North Carolina Aquatic Club
| Others |
| NCAC | North Carolina Arts Council
| Others |
| NCAC | North Carolina Autocross Championship
| Others |
| NCAC | North Cascades Athletic Club
| Others |
| NCAC | North Coast Advisory Council
| Others |
| NCAC | North Coast Athletic Conference
| Others |
| NCAC | North Columbus Alliance Church
| Others |
| NCAC | Northern California Athletic Conference
| Others |
| NCAC | Northern California Audi Club
| Others |
| NCAC | Northern Combat Area Command
| Others |