| NEFT | National Electronic Funds Transfer |
| NDA | National Defence Academy |
| NET | National Eligibility Test |
| NIIT | National Institute of Information Technology |
| NCR | National Capital Region |
| NASDAQ | National Association of Securities Dealers Automated Quotations |
| NIFTY | National Stock Exchange Fifty |
| NPA | Non Performing Assets |
| NGO | Non-Governmental Organization |
| NDA | National Democratic Alliance |
| NTPC | National Thermal Power Corporation |
| NSDL | National Securities Depository Limited |
| NDTV | New Delhi Television |
| NCERT | National Council of Educational Research and Training |
| NCC | National Cadet Corps |
| NATO | North Atlantic Treaty Organization |
| NASA | National Aeronautics and Space Administration |
| NABARD | National Bank for Agriculture and Rural Development |
| NAAC | National Assessment and Accreditation Council |
| NVM | Never Mind |
| NPR | National Population Register |
| NCRTC | National Capital Region Transport Corporation |
| NSFW | Not Safe For Work |
| NOOB | Newbie or Newcomer |
| NBD | No Big Deal |
| NTSE | National Talent Search Examination |
| NET JRF | National Eligibility Test for Junior Research Fellowship |
| NOC | No Object Certification |
| NTG | Nitroglycerin |
| NOYB | None of your Business |
| N/A | Not Applicable / Available |
| NNTR | No need to Reply |
| NRN | No Reply Necessary |
| N/V | Nausea Or Vomiting |
| NCT Time Zone | New Caledonia Time (Standard Time) |
| NDT Time Zone | Newfoundland Daylight Time (Daylight Saving Time) |
| NFDT Time Zone | Norfolk Daylight Time (Daylight Saving Time) |
| NFT Time Zone | Norfolk Time (Standard Time) |
| NOVST Time Zone | Novosibirsk Summer Time (Daylight Saving Time) |
| NOVT Time Zone | Novosibirsk Time (Standard Time) |
| NPT Time Zone | Nepal Time (Standard Time) |
| NRT Time Zone | Nauru Time (Standard Time) |
| NST Time Zone | Newfoundland Standard Time (Standard Time) |
| NUT Time Zone | Niue Time (Standard Time) |
| NZDT Time Zone | New Zealand Daylight Time (Daylight Saving Time) |
| NZST Time Zone | New Zealand Standard Time (Standard Time) |
