| Abbreveation | | description |
| NM | | NeverMind |
| NRN | | No Reply Necessary |
| NE | | any |
| NETHNG | | anything |
| NE1 | | anyone |
| NO1 | | no one |
| NP | | no problem |
| NIFOC | | Nude in front of the computer |
| NA | | Not applicable or Not affiliated |
| NT | | No text |
| NAK | | Nursing at keyboard |
| NAP | | Not a problem |
| NAZ | | Name, Address, Zip (also means NASDAQ) |
| NBD | | No big deal |
| NBIF | | No basis in fact |
| NC | | No comment |
| NCG | | New college graduate |
| NFC | | No fucking clue |
| NFI | | No fucking idea |
| NFW | | No fucking way |
| NG | | New gme |
| NIM | | No internal message |
| NIMBY | | Not in my back yard |
| NIMQ | | Not in my queue |
| NMP | | Not my problem |
| NOYB | | None of your business |
| NQOCD | | Not quite our class, dear |
| NRG | | Energy |
| NYCFS | | New York City finger salute |
| BEOS | | Nudge |
| N1 | | Nice One |
| N2M | | Not To Mention |
| NALOPKT | | Not A Lot of People Know That |
| NE1 | | Anyone |
| NE1 ER | | Anyone Here? |
| NTK | | Nice To Know |
| NTYMI | | Now That You Mention It |
| NUFF | | Enough Said |
| NW | | No Way! |
| 9 | | Nine |
| NSFW | | Not Safe For Work |
| NOOB | | New Person - Noobie (often derogatory; "Your such a noob!") |
| N00B | | Noobie (New Person) |
| NF | | Nucking Futs (Fucking Nuts) |
| NVM | | Nevermind |
| NH | | Nice Hand (Used in Poker) |
| NINJA | | No Income, No Job, or Assets |
