| Abbreviation | Definition |
|---|---|
| INFS | Institute of Nutrition and Food Science |
| INH | Institute for Natural Healing |
| INI | Information Networking Institute |
| INI | Institute of Neuro Innovation |
| INI | Intercontinental Nuclear Institute |
| INI | International Neuroscience Institute |
| INI | Isaac Newton Institute |
| INIT | Institute of New Imaging Technologies |
| INJF | Institute for the Next Jewish Future |
| INM | Institute for Natural Medicine |
| INM | Institute for Neurosciences of Montpellier |
| INM | Institute of Natural Medicine |
| INM | Institute of Neuroscience and Medicine |
| INMS | Institute of Natural and Mathematical Sciences |
| INN | Institute for Nonprofit News |
| INP | Institute for Nonprofit Practice |
| INP | Institute for Nuclear Problems |
| INP | Institute of National Petroleum |
| INP | Institute of Nuclear Physics |
| INPA | Institute for Nuclear and Particle Astrophysics |