| intermittente | intermitente |
| intermittenza | parpadear |
| internalizzazione dei costi | internalización de costes exteriores |
| internamento | internamiento |
| internare | recluir en un manicomio |
| internare in un ospedale psichiatrico | recluir en un manicomio |
| internata | internada |
| International Accounting Standards | Estándares contables internacionales |
| International Air Transport Association | Asociación de Transporte Aéreo Internacional |
| International Bank Account Number | International Bank Account Number |
| International Biathlon Union | Unión Internacional de Biatlón |
| International Council for Science | Consejo Internacional para la Ciencia |
| International Earth Rotation and Reference Systems Service | Segundo intercalar |
| International English Language Testing System | IELTS |
| International Federation of Library Associations and Institutions | IFLA |
| International Mobile Equipment Identity | IMEI |
| International Music Score Library Project | Proyecto Biblioteca Internacional de Partituras Musicales |
| International of Anarchist Federation | Internacional de Federaciones Anarquistas |
| International Physicians for the Prevention of Nuclear War | Asociación Internacional de Médicos para la Prevención de la Guerra Nuclear |
| International protection | Índice de protección |
| International Security Assistance Force | Fuerza Internacional de Asistencia para la Seguridad |
| International Standard Audiovisual Number | ISAN |
| International Tennis Hall of Fame | Salón Internacional de la Fama del tenis |
| International Union of Socialist Youth | Unión Internacional de Juventudes Socialistas |
| internato | internado |
| internazionale | de larga distancia |
| Internazionale Democratica Centrista | Internacional Demócrata de Centro |
| Internazionale Football Club | Football Club Internazionale Milano |
| Internazionale Socialista | Internacional Socialista |
| Internazionale Umanista | Internacional Humanista |
| internazionalismo | internacionalismo |
| internazionalizzare | internacionalizar |
| Internet | internet |
| Internet Archive | Internet Archive |
| Internet Assigned Numbers Authority | Internet Assigned Numbers Authority |
| Internet dipendenza | Adicción a Internet |
| Internet Engineering Task Force | IETF |
| Internet Exchange Point | Punto neutro |
| Internet Explorer | Internet Explorer |
| Internet Group Management Protocol | Internet Group Management Protocol |
| Internet Information Services | Internet Information Services |
| Internet Movie Database | Internet Movie Database |
| Internet Relay Chat | Internet Relay Chat |
| Internet Society | Internet Society |
| Internetwork Packet Exchange | Internetwork Packet Exchange |
| internista | médico internista |
