NIN
| Acronym | Definition |
|---|---|
| NIN | National Insurance Number (UK) |
| NIN | Nine Inch Nails (band) |
| NIN | National Institute of Nutrition (India) |
| NIN | National Institute of Nutrition |
| NIN | Now I'm Nothing |
| NIN | No Introduction Needed |
| NIN | Netherlands Institute for Neuroscience |
| NIN | National Identification Number |
| NIN | National Information Network |
| NIN | news.individual.net (news group/server) |
| NIN | Nouvelle Imprimerie du Niger (French) |
| NIN | Notice of Intent to Negotiate |
| NIN | NATO Index Number |
| NIN | Naval Integrated Networks |
| NIN | Noise-Injection Network |