| Short Code | Full Form |
|---|---|
| NAC full form | National Advisory Council |
| NaCL full form | Sodium Chloride |
| NACO full form | National AIDS Control Organization |
| NAD full form | Nicotinamide Adenine Dinucleotide |
| NADA full form | National Anti Doping Agency |
| NADP full form | Nicotinamide Adenine Dinucleotide Phosphate |
| NAPS full form | National Apprenticeship Promotion Scheme |
| NASSCOM full form | National Association of Software and Services Companies |
| NAAC full form | National Assessment and Accreditation Council |
| NAC full form | Network Access Control |
| NATO full form | North Atlantic Treaty Organization |
| NABARD full form | National Bank for Agriculture and Rural Development |
| NATA full form | National Aptitude Test in Architecture |
| NAV full form | Net Asset Value |
| NAVY full form | Nautical Army of Volunteer Yeomen |
| NB full form | Nota Bene | New Brunswick | Non Binary |
| NBC full form | National Broadcasting Company |
| NBFC full form | Non-Banking Financial Company |
| NBSP full form | National Biometric Security Project |
| NC full form | Normally Closed | North Central |
| NASA full form | National Aeronautics and Space Administration |
| NASDAQ full form | National Association of Securities Dealers Automated Quotations |
| NACH full form | National Automated Clearing House Payment Solution |
| NCA full form | National Crime Agency |
| NCB full form | Narcotics Control Bureau |
| NCBI full form | National Center for Biotechnology Information |
| NCC full form | National Cadet Corps |
| NCERT full form | National Council of Educational Research and Training |
| NDA full form | National Defence Academy | National Democratic Alliance |
| NEET full form | National Eligibility-cum-Entrance Test |
| NCF full form | National Curriculum Framework |
| NCL full form | Non Creamy Layer |
| NCO full form | Non-Commissioned officer |
| NDA full form | National Democratic Alliance |
| NDRF full form | National Disaster Response Force |
| NET full form | National Eligibility Test |
| NFC full form | Near Field Communication |
| NDC full form | NATIONAL DEVELOPMENT COUNCIL |
| NEC full form | National Electrical Code |
| NEFA full form | North-East Frontier Agency |
| NEWS full form | Nature Environment and Wildlife Society | North East West South | Network Extensible Window System |
| NGO full form | Non-Governmental Organization |
| NFS full form | National Financial Switch |
| NHB full form | National Housing Bank |
| NHK full form | Nippon Hoso Kyokai |
| NIA full form | National Investigation Agency |
| NIC full form | National Informatics Centre |
| NIFTY full form | National Stack Exchange Fifty |
| NID full form | National Institute of Design |
| NIELIT full form | National Institute of Electronics and Information Technology |
| NIIT full form | National Institute of Information Technology |
| NIL full form | Nothing / National Imagery Library |
| NIR full form | National Internet Registry |
| NOC full form | No Objection Certificate |
| NOTA full form | None of the Above |
| NTPC full form | National Thermal Power Corporation |
| NSDL full form | National Securities Depository Limited |
| NCR full form | National Capital Region |
| NAS full form | Network-Attached Storage | Non‑access Stratum | Norwegian Air Shuttle |
| NCS full form | National Career Service |
| NMMS full form | National Means-cum-Merit Scholarship |
| NPK full form | Nitrogen (N), Phosphorus(P) and Potassium (K) |
