NCA

NCA may refer to:

Australia

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

European Union

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

India

 * Nuclear Command Authority (India)
 * National Cricket Academy

Ireland

 * National Consumer Agency, a defunct government body
 * National Cycling Association, a defunct sports governing body

Norway

 * Norwegian Church Aid, a charity
 * Norwegian Coastal Administration, a government agency

Pakistan

 * National College of Arts, Lahore
 * National Command Authority (Pakistan)

United Kingdom

 * 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

United States

 * 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

Elsewhere

 * 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

Chemistry

 * Amino acid N-carboxyanhydride
 * Lithium nickel cobalt aluminium oxides, a group of lithium-ion battery cathode materials

Computing

 * 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)

Law

 * 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

Places

 * 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)

Other uses

 * 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