| | NGOs | | Non Government Organisations |
| | NGOs | | Non-Government Organisations |
| | NGT | | Not Gonna Tell |
| | NHI | | no humans involved |
| | nhoh | | never heard of her |
| | nhoh | | never heard of him |
| | NHS | | National Health Service |
| | NHTOB | | Never Heard That One Before |
| | NHTV3 | | Network Hasselhoff Television 3 |
| | ni | | neither |
| | ni | | nickel |
| | ni | | nine |
| | ni | | No Idea |
| | ni | | nor |
| | NIAA | | No Idea At All |
| | NIAM | | Natural Language Information Analysis Method |
| | NIAM | | Nijssen IAM |
| | NIAM | | Nijssen's Information Analysis Methodology |
| | nib | | new in box |
| | NICBDAT | | Nothing Is Certain But Death And Taxes |
| | NICBDTAT | | Nothing Is Certain But Death And Taxes |
| | NICUAR | | Now I Could Use A Raise |
| | NIDWTC | | No I Don't Want To Chat |
| | NIFOC | | naked in front of computer |
| | NIFOC | | naked in front of the computer |
| | NIFOC | | nude in front of the computer |
| | NIFOTC | | nude in front of the computer |
| | NIH | | national institutes of health |
| | NIH | | Not Invented Here |
| | NIHL | | noise induced hearing loss |
|