| International Campaign to Ban Landmines | International Campaign to Ban Landmines |
| international candle | internationale Kerze |
| international candle power | Internationale Kerze |
| International Candlelight Vigil Memorial | Internationales Kerzenlicht-Nachtwache-Denkmal |
| International Canoe Federation | Internationaler Kanuverband |
| International Cartographic Association , ICA | Internationale Kartographische Vereinigung , IKV |
| international celestial reference system , ICRS | internationales Himmelsreferenzsystem |
| International Centre for Settlement of Investment Disputes | Internationales Zentrum zur Beilegung von Investitionsstreitigkeiten |
| International Centre for Theoretical Physics | International Centre for Theoretical Physics |
| International Chamber of Commerce , ICC | Internationale Handelskammer , ICC |
| International Chamber of Commerce Council on Advertising Practice | Schiedsstelle der internationalen Handelkammer für Fälle unlauterer Werbung |
| International Charlemagne Prize of the city of Aachen | Internationaler Karlspreis der Stadt Aachen |
| International Chemistry Olympiad | Internationale Chemieolympiade |
| International Children's Day | Weltkindertag |
| International Churches of Christ | Internationale Gemeinden Christi |
| International Civil Aviation Organization | International Civil Aviation Organization |
| International Civil Aviation Organization , ICAO | Internationale Organisation für zivile Luftfahrt , ICAO |
| International Civil Aviation Organization airport code | IATA-Code |
| International Classification of Diseases 10 | Internationale Klassifikation der Krankheiten, Version 10 |
| International Classification of Diseases for Oncology | International Classification of Diseases for Oncology |
| International Cloud Atlas | Internationaler Wolkenatlas |
| international co-operation | Internationale Zusammenarbeit |
| International Co-operative Alliance | International Co-operative Alliance |
| International Coalition for the Decade | Internationale Koordination für die Dekade |
| international code | internationale Kennzahl |
| International Code of Botanical Nomenclature | Internationaler Code der Botanischen Nomenklatur |
| International Code of Marketing of Breast-milk Substitutes | Internationaler Kodex für die Vermarktung von Muttermilchersatzprodukten |
| International Code of Nomenclature of Bacteria | International Code of Nomenclature of Bacteria |
| International Code of Signals | Internationales Signalbuch |
| International Code of Zoological Nomenclature | Internationale Regeln für die Zoologische Nomenklatur |
| International Color Consortium | International Color Consortium |
| International Commerce Centre | International Commerce Center |
| international commercial terms | internationale Handelsbedingungen der ICC |
| International Commission for the Protection of the Danube River | Internationale Kommission zum Schutz der Donau |
| International Commission of Jurists | Internationale Juristenkommission |
| International Commission on Illumination | Internationale Beleuchtungskommission |
| International Commission on Illumination , CIE | Internationale Beleuchtungskommission , CIE |
| International Commission on Radiological Protection | Internationale Strahlenschutzkommission |
| international committee | internationales Komitee |
| International Committee for Weights and Measures | Internationale Kommission für Maß und Gewicht |
| International Committee of the Fourth International | Vierte Internationale |
| International Committee of the Red Cross | Internationale Rotkreuz- und Rothalbmond-Bewegung |
| International Committee of the Red Cross , ICRC | Internationales Komitee vom Roten Kreuz, IKRK |
| International Communists of Germany | Internationale Kommunisten Deutschlands , IKD |
| international community | Völkergemeinschaft |
| international competition | Länderkampf |
| international competitiveness | Internationale Wettbewerbsfähigkeit |
| International Confederation of Free Trade Unions | Internationaler Bund Freier Gewerkschaften |
| international conflict | internationaler Konflikt |
| International Congress of Mathematicians | Internationaler Mathematikerkongress |
| international convention | Internationale Übereinkommen |
| International Convention against the Taking of Hostages | Internationale Konvention gegen Geiselnahme |
| International Convention for the Regulation of Whaling | Internationales Übereinkommen zur Regelung des Walfangs |
| International Convention for the Safety of Life at Sea | International Convention for the Safety of Life at Sea |
| International Convention for the Suppression of the Financing of Terrorism | internationales Übereinkommen zur Bekämpfung der Terrorismusfinanzierung |
| international convergence | internationale Annäherung |
| international cooperation | internationale Kooperation |
| international copyright | internationales Urheberrecht |
| International Correspondence Chess Federation | International Correspondence Chess Federation |
| International Council for Science | Internationaler Wissenschaftsrat |
| International Council for Science , ICSU | Internationaler Wissenschaftsrat , ICSU |
| International Council for the Exploration of the Sea | International Council for the Exploration of the Sea |
| International Council of Museums | International Council of Museums |
| International Council of Nurses | International Council of Nurses |
| International Council on Monuments and Sites | International Council on Monuments and Sites |
| International Counterfeiters | Die Spur führt nach Berlin |
| International Court of Justice | Internationaler Gerichtshof |
| International Covenant on Economic, Social and Cultural Rights , ICESCR | Internationaler Pakt über wirtschaftliche, soziale und kulturelle Rechte |
| international credit transfer | Auslandsüberweisung |
| International Cricket Council | International Cricket Council |
| International Criminal Court | Internationaler Strafgerichtshof |
| International Criminal Court, ICC | der Internationale Strafgerichtshof, IStGH , ICC |
| International Criminal Tribunal for Rwanda | Internationaler Strafgerichtshof für Ruanda |
| International Criminal Tribunal for the former Yugoslavia | Internationaler Strafgerichtshof für das ehemalige Jugoslawien |
| international crisis | internationale Krise |
| International Cup | Weltpokal |
| international custom | völkerrechtliches Gewohnheitsrecht |
| international customer | Auslandskunde |
| international data encryption algorithm | IDEA-Algorithmus |
| International Date Line | Datumsgrenze |
| International Date Line , IDL | internationale Datumsgrenze |
| International Day against Drug Abuse and Illicit Trafficking | Weltdrogentag |
| International Day Against Homophobia | International Day Against Homophobia |
| International Day for the Eradication of Poverty | Internationaler Tag für die Beseitigung der Armut |
| International Day of Peace | Weltfriedenstag |
| international debt crisis | internationale Schuldenkrise |
| International Democrat Union | Internationale Demokratische Union |
| International Development Association | Internationale Entwicklungsorganisation |
| international dimension | internationale Dimension |
| international direct dial call | Auslandsgespräch mit Durchwahl |
| international direct distance dialling | Internationaler Selbstfernwähldienst |
| international distress radio frequency | internationale Notfunkfrequenz |
| international distribution | Internationale Verteilung |
| international division of labor | internationale Arbeitsteilung |
| international division of labour | Internationale Arbeitsteilung |
| International dollar | Internationaler Dollar |
| International draughts | Dame |
| International E-road network | Europastraße |
| International Earth Rotation and Reference Systems Service | Internationaler Erdrotationsdienst |
| international economic law | internationales Wirtschaftsrecht |
| International economics | Wirtschaft |
| international economy | Weltwirtschaft |
| International Eisteddfod | Eisteddfod |
| international election observers | internationale Wahlbeobachter |
| international electronical commission | Internationale elektronische Kommission |
| International Electrotechnical Commission | International Electrotechnical Commission |
| International Energy Agency | Internationale Energieagentur |
| International English | Englisch als Lingua Franca |
| international environmental relations | Internationale Umwelbeziehungen |
| international exchange | Transit-Vermittlungsstelle |
| international exposition | internationale Ausstellung |
| International express | D-Zug |
| International express train | D-Zug |
| International Federation for Equestrian Sports | International Federation of Equestrian Sports |
| International Federation of American Football | International Federation of American Football |
| International Federation of Associated Wrestling Styles | FILA |
| International Federation of Journalists | Internationale Journalisten-Föderation |
| International Federation of Liberal Youth | International Federation of Liberal Youth |
| International Federation of Library Associations and Institutions | IFLA |
| International Federation of Red Cross and Red Crescent Societies | Internationales Rotes Kreuz |
| International Fellowship of Reconciliation | Internationaler Versöhnungsbund |
| International Finance Centre | Two International Finance Centre |
| International Finance Corporation | International Finance Corporation |
| international financial Jewry | internationales Finanzjudentum |
| International Financial Reporting Standards | International Financial Reporting Standards |
| international financial system | internationales Finanzsystem |
| International Fixed Calendar | Internationaler Ewiger Kalender |
| international flight | Auslandsflug |
| International Football Association Board | International Football Association Board |
| international football match | Fußballländerspiel |
| International Four Days Marches Nijmegen | Nijmegenmarsch |
| International Frederick Chopin Piano Competition | Chopin-Wettbewerb |
| International Fund for Agricultural Development | Internationaler Fonds für landwirtschaftliche Entwicklung |
| International Fund for Agricultural Development , IFAD | Internationaler Fonds für landwirtschaftliche Entwicklung , IFAD |
| International Gamers Award | International Gamers Award |
| international gateway | internationales Tor |
| international gateway exchange | Auslands-Kopfvermittlungsstelle |
| International Geographical Union , IGU | Internationale Geographische Union , IGU |
| International Geophysical Year | Internationales Geophysikalisches Jahr |
| International Gothic | Weicher Stil |
| International Handball Federation | International Handball Federation |
| international harmonisation | Internationale Harmonisierung |
| International Helsinki Federation for Human Rights | Internationale Helsinki-Föderation für Menschenrechte |
| International Hockey Federation | Fédération Internationale de Hockey |
| International Hockey League | International Hockey League |
| International Holocaust Remembrance Day | Tag des Gedenkens an die Opfer des Nationalsozialismus |
| International House | Hotel International |
| International humanitarian law | Humanitäres Völkerrecht |
| International Hydrographic Organization | Internationale Hydrografische Organisation |
| International Ice Hockey Federation | Internationale Eishockey-Föderation |
| International Institute for the Sociology of Law | International Institute for the Sociology of Law |
| International Institute for the Unification of Private Law | UNIDROIT |
| International Institute of Social History | Internationales Institut für Sozialgeschichte |
| International Island Games Association | Island Games |
| International Labor Organization | Internationale Arbeitsorganisation |
| International Labour | Internationale Arbeitsorganisation |
| International Labour Organization | Internationale Arbeitsorganisation |
| International Labour Organization , ILO | Internationale Arbeitsorganisation , IAO |
| International Lacrosse Federation | International Lacrosse Federation |
| international language for aviation, ILA | internationale Luftfahrtsprache |
| international law | Völkerrecht |
| International Law Commission | Völkerrechtskommission |
| international law of peace | Friedensvölkerrecht |
| international law of the sea | Meeresvölkerrecht |
| international law of war | Kriegsvölkerrecht |
| International League for Human Rights , ILHR | International League for Human Rights , ILHR |
| International Lease Finance Corporation | ILFC |
| international legislation | internationale Rechtsvorschriften |
| International Lenin Prize for Strengthening Peace Among Peoples | Internationale Leninpreis für die Festigung des Friedens zwischen den Völkern |
| International Lesbian and Gay Association | International Lesbian and Gay Association |
| international letter | Auslandsbrief |
| international level | internationale Ebene |
| International Libertarian Solidarity | International Libertarian Solidarity |
| International Linear Collider | International Linear Collider |
| International Lutheran Council | Internationaler Lutherischer Rat |
| international management , INT MGMT , IM | internationales Management , IM |
| International Marine Insurance Union , I.M.I.U. , IMIU | Internationaler Schiffsversicherungsverband |
| international maritime law | Seevölkerrecht |
| International Maritime Organization | Internationale Seeschifffahrts-Organisation |
| International Maritime Organization, IMO | Internationale Organisation für Seeschifffahrt , IMO |
| International maritime signal flag | Flaggenalphabet |
| International maritime signal flags | Flaggenalphabet |
| internationaL market | Weltmarkt |
| International Marxist Group | Gruppe Internationaler Marxisten , GIM |
| International Marxist Tendency | Internationale Marxistische Tendenz |
| International Master | Internationaler Meister |
| international match | Länderspiel |
| international matches | Nationalspiele |
| International Material Data System | IMDS |
| International Mathematical Olympiad | Internationale Mathematik-Olympiade |
| International Mathematical Union | Internationale Mathematische Union |
| International Mathematical Union , IMU | Internationale Mathematische Union , IMU |
| International Men's Day | Weltmännertag |
| International Military Tribunal for the Far East | Tokioter Prozesse |
| International Mineralogical Association | International Mineralogical Association |
| international mobile equipment identity | Internationale Mobilfunkkennung |
| International Mobile Satellite Organization | Inmarsat |
| international mobile subscriber identity | Internationale Mobilfunk-Teilnehmerkennung |
| International Moneta | Internationaler Währungsfonds |
| International Monetary Fund | Internationaler Währungsfond |
