| NCA | Narmada Control Authority 
| Others |
| NCA | National Cancer Act
| Others |
| NCA | National cancer Association
| Others |
| NCA | National Candle Association
| Others |
| NCA | National Capital Area
| Others |
| NCA | National Carousel Association
| Others |
| NCA | National Cartoonists Association
| Others |
| NCA | National Cattledog Association
| Others |
| NCA | National Cattlemen's Association
| Others |
| NCA | National Cemetery Administration
| Others |
| NCA | National Center on Accessibility
| Others |
| NCA | National Centre for Ageing
| Government, Facility, Health, Medical |
| NCA | National Certified Alarms
| Others |
| NCA | National Change of Address
| Others |
| NCA | National Chauffeur Association
| Others |
| NCA | National Cheerleaders Association
| Others |
| NCA | National Cheerleading Association
| Others |
| NCA | National Chevy Association
| Others |
| NCA | National Children's Alliance
| Others |
| NCA | National Chiropractic Association
| Others |
| NCA | National Christian Academy
| Others |
| NCA | National Circuit Assembly
| Others |
| NCA | National Cleaners Association
| Others |
| NCA | National Climate Assessment
| Others |
| NCA | National Club Association
| Others |
| NCA | National Coalition Academy
| Others |
| NCA | National Coastal Assessment
| Others |
| NCA | National Coffee Association
| Others |
| NCA | National College of Arts
| Others |
| NCA | National Command Authorities
| Others |
| NCA | National Command Authority
| Others |
| NCA | National Commission on Agriculture
| Others |
| NCA | National Committee of Accreditation
| Others |
| NCA | National Communication Association
| Others |
| NCA | National Competent Authority
| Others |
| NCA | National Computerization Agency
| Others |
| NCA | National Concierge Association
| Others |
| NCA | National Confectioners Association
| Others |
| NCA | National Confectioners' Association
| Others |
| NCA | National Conservation Area
| Others |
| NCA | National Constitutional Assembly
| Others |
| NCA | National Constructors Association
| Others |
| NCA | National Cooperative Agreements
| Others |
| NCA | National Costumers Association
| Others |
| NCA | National Council on Aging
| Others |
| NCA | National Council on Alcoholism
| Others |
| NCA | National Coverage Analysis
| Others |
| NCA | National Credentialing Agency
| Others |
| NCA | National Credit Act
| Others |
| NCA | National Credit Adjusters
| Others |
| NCA | National Crime Agency
| Others |
| NCA | Nationally Competitive Awards
| Others |
| NCA | Nationwide Ceasefire Agreement
| Others |
| NCA | Native Cloud Application
| Others |
| NCA | Native Crafts and Arts
| Others |
| NCA | Native Cultural Alliance
| Others |
| NCA | Natural Class Account
| Others |
| NCA | Nazionali Car Audio
| Others |
| NCA | Nebraska Coaches Association
| Others |
| NCA | Nebraska Corvette Association
| Others |
| NCA | Necessary Condition Analysis
| Others |
| NCA | Negotiation Control Agent
| Others |
| NCA | Nele Charlotte Accessories
| Others |
| NCA | Nested Clade Analysis
| Others |
| NCA | Network Cache and Accelerator
| Others |
| NCA | Network Caching Architecture
| Others |
| NCA | Network Communications Adapter
| Others |
| NCA | Network Computing and Applications
| Others |
| NCA | Network Computing Architects
| Others |
| NCA | Network Computing Architecture
| Others |
| NCA | Network Configuration Assistant
| Others |
| NCA | Network Connectivity Assistant
| Others |
| NCA | Network Console on Acid
| Others |
| NCA | Network Control Analysis
| Others |
| NCA | Networking Coaching Academy
| Others |
| NCA | Neural Cellular Automatons
| Others |
| NCA | Neural Computing and Applications
| Others |
| NCA | neurocirculatory asthenia
| Others |
| NCA | Neutrophil Chemotactic Activity
| Others |
| NCA | Nevus Cell Aggregate
| Others |
| NCA | New Car Awards
| Others |
| NCA | New Covenant Academy
| Others |
| NCA | Newfoundland Club of America
| Others |
| NCA | Newincentive Cultural Arts
| Others |
| NCA | Newton Cultural Alliance
| Others |
| NCA | Ngorongoro Conservation Area
| Others |
| NCA | Nice Cheerleaders Administration
| Others |
| NCA | Nickel Cobalt Aluminium
| Others |
| NCA | Nigeria Cricket Association
| Cricket |
| NCA | Nippon Cargo Airlines
| Others |
| NCA | Nissan Casting Australia
| Others |
| NCA | No Candidate Available
| Others |
| NCA | No Citation Available
| Others |
| NCA | No Color Adjustment
| Others |
| NCA | No Color Assigned
| Others |
| NCA | No Color Available
| Others |
| NCA | No Cru Affiliation
| Others |
| NCA | No Customer Address
| Others |
| NCA | Nodo Cambio Automatico
| Others |
| NCA | Noise Control Act
| Others |
| NCA | Nominating Committee Appointee
| Others |
| NCA | Non Cash Accounts
| Others |
| NCA | Non Cash Assets
| Others |
| NCA | Non Cheerleaders Association
| Others |
| NCA | Non Circumvent Agreement
| Others |
| NCA | Non compete Agreement
| Others |
| NCA | Non Contract Activity
| Others |
| NCA | Non Contracted Activity
| Others |
| NCA | Non-Compete Agreement
| Others |
| NCA | noncompetitive antagonist
| Others |
| NCA | nonspecific cross-reacting antigen
| Others |
| NCA | Norse Cutting Abandonment
| Others |
| NCA | North Caicos Airport
| Others |
| NCA | North Caicos, Turks & Caicos Islands
| Others |
| NCA | North Central Academy
| Others |
| NCA | North Central Accreditation
| Others |
| NCA | North Central Associate
| Others |
| NCA | North Central Association
| Others |
| NCA | North Coast Aquatics
| Others |
| NCA | Northern Coalition of Allies
| Others |
| NCA | Northshore Christian Academy
| Others |
| NCA | Northside Catholic Academy
| Others |
| NCA | Northwestern Career Advancement
| Others |
| NCA | Notice of Cash Allocation
| Others |
| NCA | Notice Of Contemplated Action
| Others |
| NCA | Novell Certification Alliance
| Others |
| NCA | Nuclear and Chemical Agency
| Others |
| NCA | Nuclear Cerebral Angiogram
| Others |
| NCA | Numerical Chromosomal Abnormalities
| Others |
| NCA | Nurse Controlled Analgesia
| Others |
| NCA | Nurse-Controlled Analgesia
| Others |
| NCA | Nursing Competence in Aging
| Others |