| Abbreviation | Definition |
|---|---|
| NK | Needs Killing |
| NK | Ninja Kiwi |
| NK | Noble Knights |
| NL | Next Level |
| NLG | Next Level Gaming |
| NLG | No Limit Gaming |
| NLS | No Limits Snipers |
| NM | NightMare |
| NM | Nightmare! (Doom) |
| nmm | no more moves |
| NNIB | Not Now, I'm Busy |
| NNK | Naruto Naiteki Kensei |
| NNW | Nintendo North Wales |
| NOTC | Night of the Cephalopods |
| np | no problem |
| NPC | Non Playable Character (video) |
| NPC | Non-Participating Character |
| NPC | Non-Playable Character |
| NPC | Non-Player Character |
| NPC | Non-Player Controlled |