| Interlaken | Interlaken |
| Interlingua | interlingua |
| intermediate goods | halvfabrikat |
| Intermediate stop | Målestok |
| Intermediate value theorem | Mellemværdisætningen |
| Intermediate-Range Nuclear Forces Treaty | INF-aftalen |
| intermittent noise | intermitterende støj |
| Intermolecular force | Intermolekylær |
| internal | indre |
| internal European market | det indre marked |
| internal migration | indenlandsk vandring |
| internalisation of external costs | internalisering af eksterne omkostninger |
| international | international |
| international agreement | international aftale |
| International agreement or convention | Traktat |
| International Air Transport Association | International Air Transport Association |
| International Air Transport Association airport code | IATA-lufthavnskode |
| international assistance | international bistand |
| International Association of Athletics Federations | IAAF |
| International Astronautical Federation | IAF |
| International Astronomical Union | Internationale Astronomiske Union |
| International Atomic Energy Agency | Det Internationale Atomenergiagentur |
| International Baccalaureate | International Baccalaureate |
| International Baccalaureate Organization | International Baccalaureate Organization |
| international balance | international balance |
| International Bank for Reconstruction and Development | Verdensbanken |
| International Boxing Association | Association Internationale de Boxe Amateure |
| International broadcasting | International radiofoni |
| International Bureau of Weights and Measures | Bureau International des Poids et Mesures |
| International Business Machines | IBM |
| International Civil Aviation Organization | International Civil Aviation Organisation |
| International Civil Aviation Organization airport code | IATA-lufthavnskode |
| international co-operation | internationalt samarbejde |
| International Code of Botanical Nomenclature | International Code of Botanical Nomenclature |
| International Code of Signals | Signalflag |
| International Commission on Illumination | CIE |
| International Committee of the Red Cross | Den internationale Røde Kors Komité |
| international competitiveness | international konkurrencedygtighed |
| international conflict | international konflikt |
| international convention | international konvention |
| International Court of Justice | Den Internationale Domstol |
| International Criminal Court | Den Internationale Straffedomstol |
| International Criminal Tribunal for Rwanda | Det Internationale Tribunal for Rwanda |
| International Criminal Tribunal for the former Yugoslavia | Det internationale tribunal til pådømmelse af krigsforbrydelser i det tidligere Jugoslavien |
| International Cup | Intercontinental Cup |
| International Date Line | Datolinjen |
| international distribution | international fordeling |
| international division of labour | international arbejdsdeling |
| International draughts | Dam |
| International E-road network | Europavej |
| International Earth Rotation and Reference Systems Service | Skudsekund |
| international economic law | international økonomisk ret |
| International Electrotechnical Commission | International Electrotechnical Commission |
| international environmental relations | internationale forbindelser på miljøområdet |
| International Finance Centre | Two International Finance Centre |
| International for Munich | München |
| International Handball Federation | International Handball Federation |
| international harmonisation | international harmonisering |
| International humanitarian law | Humanitær folkeret |
| International Ice Hockey Federation | IIHF |
| International Labor Organization | International Labour Organization |
| International Labour | International Labour Organization |
| International Labour Organization | International Labour Organization |
| international law | folkeret |
| International League of Religious Socialists | Internationalt Forbund af Religiøse Socialister |
| International Maritime Organization | International Maritime Organization |
| International maritime signal flag | Signalflag |
| International maritime signal flags | Signalflag |
| International Mathematical Olympiad | Internationale Matematik-Olympiade |
| International Mineralogical Association | International Mineralogical Association |
| International Mobile Satellite Organization | Inmarsat |
| International Moneta | Internationale Valutafond |
| International Monetary Fund | Den Internationale Valutafond |
| International observance | FN |
| International Olympic Committee | IOC |
| international organisation | international organisation |
| International organization | International organisation |
| International Organization for Migration | International Organization for Migration |
| International Organization for Standardization | International Organization for Standardization |
| International Paneuropean Union | Paneuropabevægelsen |
| International Phonetic Alphabet | Det internationale fonetiske alfabet |
| International Polar Year | Det Internationale Polarår |
| international politics | international politik |
| International Press Telecommunications Council | International Press Telecommunications Council |
| International Red Cross and Red Crescent Movement | Røde Kors |
| international relations | internationale forbindelser |
| international safety | international sikkerhed |
| International Security Assistance Force | International Security Assistance Force |
| International Society for Krishna Consciousness | Hare Krishna |
| International Space Station | Den Internationale Rumstation |
| International Standard Bibliographic Description | International Standard Bibliographic Description |
| International Standard Book Number | Internationalt Standardbognummer |
| International Standard Classification of Occupations | ISCO |
| international standardisation | international standardisering |
| International Statistical Classification of Diseases and Related Health Problems | ICD |
| International Swimming Federation | FINA |
| International System of Units | Système International d'Unités |
| International Telecommunication Union | International Telecommunication Union |
