NCA explained

NCA may refer to:

Businesses and organisations

National Capital Authority, a government authority for development planning of the Capital Territory
National Crime Authority, defunct investigative agency

National Competent Authorities, referring to the country-level agencies participating in EU policy frameworks such as European Union competition law or European Banking Supervision

National Campaign for the Arts, a lobbying group
National Character Area, a type of region in England
National Crime Agency, a law-enforcement agency
The Northern Care Alliance NHS Group, a health-care organisation for Greater Manchester

National Climate Assessment, a governmental interagency
National Cheerleaders Association, an organization that holds cheer camps and competitions
National Credentialing Agency for Laboratory Personnel, a professional association for medical laboratory professionals.
National Coffee Association, a coffee industry body
National Command Authority (United States), a military doctrine
National Communication Association, an organization to promote communication studies as a discipline
National Conservation Area, a class of region managed by the Bureau of Land Management
North Central Association of Colleges and Schools, one of six organizations that provide higher learning accreditation

National Citizens Alliance, federal political party in Canada
National Computerization Agency, a Korean statutory agency for informatization
Network of Concerned Anthropologists, an independent ad hoc network of anthropologists seeking to promote an ethical anthropology
National Conscription Agency, an agency in Taiwan
New Classical Adventure, a record label for classical music based in Hamburg, Germany
Nigerian College of Accountancy, training institution in Jos, Nigeria
Nippon Cargo Airlines, a cargo airline of Japan
Nuevo Central Argentino, an Argentine railway company

Network Computing Architecture (disambiguation)
Neighbourhood components analysis, a supervised classification technique
Nexus Computing Agents, trusted software programs in Microsoft's delayed Next-Generation Secure Computing Base initiative
Nortel Certified Architect, the highest Nortel certifications
.nca-File (Nintendo Switch Content Archive- or Nikon Camara Color Adjustment-File)

Nature Conservation Act 1992, Queensland, Australia
Noise Control Act, a U.S. law more formally known as the Noise Pollution and Abatement Act of 1972
Non-compete agreement, an agreement between an employer and employee prohibiting an employee from working for a competitor after separation

New Caledonia, French overseas territory, UNDP country code
Nicaragua, by IOC country code
Urban community of Nice Côte d'Azur, the intercommunal structure gathering the city of Nice, France and some of its suburbs
Ngorongoro Conservation Area, a protected area and World Heritage Site Arusha, Tanzania
North Caicos Airport, Turks and Caicos Islands (by IATA code)

Nationwide Ceasefire Agreement, a landmark ceasefire agreement in Myanmar commonly known by its abbreviation
NC.A (born 1996), Korean singer
News Channel America, an American television news and entertainment network
Necessary Condition Analysis, a data analysis method