| InterCity | InterCity |
| InterCityExpress | InterCityExpress |
| interdiction | forbud |
| Interdiction de fumer | Rygeforbud |
| interdiction des C.F.C. et haloalcalines | chlorofluorocarbon- og halonforbud |
| interdire | forbyde |
| interdit | forbudt |
| interface air mer | grænseflade mellem hav og luft |
| Interface de programmation | API |
| interface graphique | grafisk brugerflade |
| Interface graphique utilisate | Grafisk brugerflade |
| Interface homme-machine | HCI |
| Interface-utilisateur | Brugergrænseflade |
| Interference | Interferens |
| Interférence | Interferens |
| Interférence linguistique | Interferens |
| Interférométrie à très longue base | Radioastronomi |
| Intergiciel | Middleware |
| Interjection | Udråbsord |
| Interlaken | Interlaken |
| Interlingua | interlingua |
| internalisation des coûts externes | internalisering af eksterne omkostninger |
| International Association of Athletics Federations | IAAF |
| International Business Machines Corporation | IBM |
| International Earth Rotation and Reference Systems Service | Skudsekund |
| International English Language Testing System | Barn |
| International Federation of Phonographic Industry | IFPI |
| International Press Telecommunications Council | International Press Telecommunications Council |
| International standard bibliographic description | International Standard Bibliographic Description |
| International Thermonuclear Experimental Reactor | ITER |
| International Virtual Aviation Organisation | IVAO |
| Internationale | Internationale |
| Internationale communiste | Komintern |
| Internationale des services publics | Public Services International |
| Internationale Nederlanden Groep | ING Groep |
| Internationale ouvrière | Anden Internationale |
| Internationale socialiste | Socialistisk Internationale |
