| interlude | Interludium |
| Intermeco | Intermeco |
| intermezzo | Interludium |
| interminable | unbegrenzt |
| intermittent | in Abständen |
| intermède | Intermezzo |
| Intermédaire | Vermittlung |
| intermédiaire | Medium |
| Intermétallique | Intermetallische Verbindung |
| Internal Revenue Service | Internal Revenue Service |
| internalisation des coûts externes | Kosteninternalisierung |
| internat | Internat |
| international | Auslands- |
| International Accounting Standards Board | International Accounting Standards Board |
| International Accounting Standards Committee | International Accounting Standards Committee |
| International Association of Athletics Federations | International Association of Athletics Federations |
| International Astronomical Youth Camp | IAYC |
| International Board | International Football Association Board |
| International Brotherhood of Teamsters | International Brotherhood of Teamsters |
| International Business Machines Corporation | IBM |
| International Color Consortium | International Color Consortium |
| International Correspondence Chess Federation | International Correspondence Chess Federation |
| International Cricket Council | International Cricket Council |
| International Data Encryption Algorithm | International Data Encryption Algorithm |
| International Earth Rotation and Reference Systems Service | Internationaler Erdrotationsdienst |
| International English Language Testing System | International English Language Testing System |
| International Federation of Phonographic Industry | International Federation of the Phonographic Industry |
| International Fellowship of Reconciliation | Internationaler Versöhnungsbund |
| International Financial Reporting Standards | International Financial Reporting Standards |
| International Gamers Awards | International Gamers Award |
| International Gamma-Ray Astrophysics Laboratory | Integral |
| International Institute for Management Development | International Institute for Management Development |
| International Lease Finance Corporation | ILFC |
| International Lesbian and Gay Association | International Lesbian and Gay Association |
| International Liaison Committee on Resuscitation | International Liaison Committee on Resuscitation |
| International Management Group | International Management Group |
| International Mobile Equipment Identity | International Mobile Equipment Identity |
| International Mobile Subscriber Identity | International Mobile Subscriber Identity |
| International Music Score Library Project | International Music Score Library Project |
| International Obfuscated C Code Contest | International Obfuscated C Code Contest |
| International Press Telecommunications Council | International Press Telecommunications Council |
| International Psychoanalytical Association | Internationale Psychoanalytische Vereinigung |
| International Skating Union | Internationale Eislaufunion |
| International Swaps and Derivatives Association | International Swaps and Derivatives Association |
| International Telephone and Telegraph | International Telephone and Telegraph |
| International Tennis Hall of Fame | International Tennis Hall of Fame |
| International Thermonuclear Experimental Reactor | Internationaler Thermonuklearer Experimenteller Reaktor |
| International Virtual Aviation Organisation | IVAO |
| Internationale | Die Internationale |
| Internationale communiste | Kommunistische Internationale |
| Internationale des résistants à la guerre | War Resisters International |
| Internationale démocrate centriste | Christlich Demokratische Internationale |
| Internationale Ferienkurse für Neue Musik | Darmstädter Ferienkurse |
| Internationale libérale | Liberale Internationale |
| Internationale Nederlanden Groep | ING Groep |
| Internationale ouvrière | Sozialistische Internationale |
| Internationale ouvrière socialiste | Sozialistische Arbeiterinternationale |
| Internationale situationniste | Situationistische Internationale |
| Internationale socialiste | Sozialistische Internationale |
| Internationale syndicale rouge | Rote Gewerkschafts-Internationale |
| Internationalisation | Internationalisierung |
| Internationalisation de logiciel | Internationalisierung |
| internationaliser | internationalisieren |
| internationalisme | Internationalismus |
| Internationalisme prolétarien | Internationale |
| Internationalized Resource Identifiers | Internationalized Resource Identifier |
| Internationaux de France de Roland-Garros | French Open |
| internaute | Surfer |
| interne | Assistenzarzt |
