| Acronym | Definition |
|---|
| NCAC | National Coalition Against Censorship |
| NCAC | North Coast Athletic Conference |
| NCAC | North Carolina Administrative Code |
| NCAC | National Childcare Accreditation Council |
| NCAC | National Children's Advocacy Center |
| NCAC | National Center on Accessing the General Curriculum |
| NCAC | National Capital Area Council (Boy Scouts) |
| NCAC | National Consumer Affairs Center (Japan) |
| NCAC | National Copyright Administration of China |
| NCAC | North Carolina Arts Council |
| NCAC | National Council of Acoustical Consultants |
| NCAC | National Conventional Arms Control (South Africa) |
| NCAC | National Career Academy Coalition |
| NCAC | National Center for Alternative Certification (teaching) |
| NCAC | National Certified Addiction Counselor |
| NCAC | National College Advising Corps |
| NCAC | National Consumer Assistance Center (Experian) |
| NCAC | National Cadet Advisory Council |
| NCAC | National Clean Air Coalition |
| NCAC | New Challenges for Access Control |
| NCAC | Nepean Creative Arts Centre (Ottawa, Ontario, Canada) |
| NCAC | Nitrogen-Containing Aromatic Compound |
| NCAC | Native Community Action Council |
| NCAC | Non-Compandored Analog Carrier |