| if we do not hear anything to the contrary | sauf avis contraire |
| Ife | Ife |
| Iffusiveness | Diffusion de la matière |
| Iffwil | Iffwil |
| IFK Göteborg | IFK Göteborg |
| IFK Malmö | IFK Malmö FK |
| Ifo Institut für Wirtschaftsforschung | IFO |
| IFOR | IFOR |
| IFPI | International Federation of Phonographic Industry |
| Ifriqiya | Ifriqiya |
| Ifrit | Éfrit |
| Ifs | Ifs |
| IFuturelist | IFuturelist |
| Ifá | Ifa |
| IG Farben | Interessengemeinschaft Farbenindustrie |
| IG Farben Trial | Procès IG Farben |
| IG Metall | IG Metall |
| Ig Nobel Prize | Prix Ig Nobel |
| IGA | IGA |
| IgA nephropathy | Maladie de Berger |
| Igantzi | Igantzi |
| Igbo | Ibo |
| Igbo people | Ibo |
| Igel | Erinaceidae |
| Igenous rock | Roche magmatique |
| Igersheim | Igersheim |
| IGES | Initial Graphics Exchange Specification |
| Iggy Pop | Iggy Pop |
| Igis | Igis |
| Iglesias | Iglesias |
| igloo | igloo |
| IGN | IGN Entertainment |
| Ignace I Daoud | Ignace Moussa Ier Daoud |
| Ignace Pierre VIII Abdel-Ahad | Ignace Pierre VIII Abdel-Ahad |
| Ignacio Bolívar | Ignacio Bolívar y Urrutia |
| Ignacio Burgoa | Ignacio Burgoa Orihuela |
| Ignacio Comonfort | Ignacio Comonfort |
| Ignacio Fernández Lobbe | Ignacio Fernandez Lobbe |
| Ignacio Ramonet | Ignacio Ramonet |
| Ignacy Domeyko | Ignacy Domeyko |
| Ignacy Jan Paderewski | Ignacy Paderewski |
| Ignacy Krasicki | Ignacy Krasicki |
| Ignatius | Ignace |
| Ignatius Brianchaninov | Ignace |
| Ignatius Gabriel I Tappouni | Ignace Gabriel Ier Tappouni |
| Ignatius of Loyola | Ignace de Loyola |
| Ignaz Edler von Born | Ignaz von Born |
| Ignaz Pleyel | Ignace Joseph Pleyel |
| Ignaz Schiffermüller | Ignaz Schiffermüller |
| Ignaz Semmelweis | Ignace Philippe Semmelweis |
| Ignaz-Glaser-Symposium | Ignaz-Glaser-Symposion |
| Ignazio Danti | Ignazio Danti |
| igneous | igné |
| igneous rock | roche magmatique |
| Ignimbrite | Ignimbrite |
| Ignis | Feu |
| ignitable | combustible |
| ignite | mettre le feu à |
| ignitible | combustible |
