| Acronym | Meaning |
![](file.png) | IFO | Identified Flying Object (see Also UFO) |
![](file.png) | IFOR | UN Implementation Force -Institute For Operations Research - International Fellowship Of Reconciliation |
![](file.png) | IFOV | Instantaneous Field Of View |
![](file.png) | IFPI | International Federation Of Phonographic Industries |
![](file.png) | IFR | Instrument Flight Rules |
![](file.png) | IFRB | International Frequency Registration Board |
![](file.png) | IFV | Infantry Fighting Vehicle |
![](file.png) | IG | Inspector General |
![](file.png) | IG | Igbo Language (ISO 639-1 Code) |
![](file.png) | IGS | International Ground Station |
![](file.png) | IGY | International Geophysical Year |
![](file.png) | IHH | Idiopathic Hypogonadotropic Hypogonadism |
![](file.png) | IHO | International Hydrographic Organization |
![](file.png) | IHR | Institute For Historical Review |
![](file.png) | IHS | Institut Des Hautes ?tudes Scientifiques (French |
![](file.png) | II | Sichuan Yi Language (ISO 639-1 Code) |
![](file.png) | II | Two (in Roman Numerals) |
![](file.png) | IICA | Inter-American Institute For Cooperation On Agriculture |
![](file.png) | IIE | Innovative Interstellar Explorer |
![](file.png) | III | Sichuan Yi Language (ISO 639-2 Code) |
![](file.png) | III | Three (in Roman Numerals) |
![](file.png) | IIRC | If I Recall/Remember Correctly |
![](file.png) | IISS | International Institute For Strategic Studies |
![](file.png) | IIT | Illinois Institute Of Technology - Indian Institutes Of Technology - Indiana Institute Of Technology |
![](file.png) | IJN | Imperial Japanese Navy (World War II) |
![](file.png) | IJWP | Interim Joint Warfare Publication |
![](file.png) | IK | Inupiaq Language (ISO 639-1 Code) |
![](file.png) | IKEA | Ingvar Kamprad (the Company's Founder) |
![](file.png) | IKU | Inuktitut Language (ISO 639-2 Code) |
![](file.png) | IL | Illinois (postal Symbol) - Israel (ISO 3166 Digram) |
![](file.png) | ILC | International Law Commission - International Linear Collider |
![](file.png) | ILDS | Improved Landmine Detection System |
![](file.png) | ILE | Interlingue Language (ISO 639-2 Code) |
![](file.png) | ILO | International Labour Organization |
![](file.png) | ILRI | International Livestock Research Institute |
![](file.png) | ILS | Israeli Shekel (ISO 4217 Currency Code) |
![](file.png) | ILY | I Love You [pronounced ILL-LEE] |
![](file.png) | IM | Isle Of Man (FIPS 10-4 Territory Code) -Instant Message (internet Speech) |
![](file.png) | IMA | Intermediate Maintenance Activity |
![](file.png) | IMBD | International Migratory Bird Day |
![](file.png) | IMDB | Internet Movie Database |
![](file.png) | IMF | International Monetary Fund |
![](file.png) | IMHO | In My Humble Opinion |
![](file.png) | IML | International Mister Leather |
![](file.png) | IMLAST | International Movement For Leisure Activities In Science And Technology - See MILSET |
![](file.png) | IMNSHO | In My Not So Humble Opinion |
![](file.png) | IMO | In My Opinion - International Maritime Organization |
![](file.png) | IMPAC | International Merchant Purchase Authorization Card |
![](file.png) | IMPACT | International Medical Products Anti-Counterfeiting Taskforce |
![](file.png) | IMPATT | IMPact Avalanche Transit Time Diode |