| ionosphere | ionosphère |
| Ionospheric scintillation | Scintillation ionospherique |
| Iora | Aegithinidae |
| IORE | Bombardier IORE |
| IOS | Ios |
| Ios Island | Ios |
| Iosef Stalin tank | Char Iosef Stalin |
| Iosif Grigulevich | Iossif Grigoulevitch |
| Iosif Shklovsky | Iosef Shklovski |
| Iosif Stalin tank | Char Iosef Stalin |
| Iota | Iota |
| Iota Aurigae | Iota Aurigae |
| Iota Carinae | Iota Carinae |
| Iota Ceti | Iota Ceti |
| Iota Orionis | Iota Orionis |
| IOU | reconnaissance |
| Iovan Tsaous | Giovan Tsaous |
| Iowa | Iowa |
| Iowa - Des Moines | Texas |
| Iowa class battleship | Classe Iowa |
| Iowa tribe | Iowa |
| IP | IP |
| IP Multimedia Subsystem | IP Multimedia Subsystem |
| IP over Avian Carriers | IP over Avian Carriers |
| IPA | Alphabet phonétique international |
| Ipanema | Ipanema |
| Ipatiev House | Villa Ipatiev |
| Ipatiev Monastery | Monastère Ipatiev |
| Ipatinga | Ipatinga |
| Ipatinga Futebol Clube | Ipatinga Futebol Clube |
| IPBX | IPBX |
| IPCC Fourth Assessment Report | Quatrième rapport du GIEC |
| IPCop | IPCop |
| Ipecac Recordings | Ipecac |
| Ipeľ | Ipel |
| Ipfirewall | Ipfirewall |
| Iphicles | Iphiclès |
| Iphicrates | Iphicrate |
| Iphigeneia | Iphigénie |
| Iphigeneia at Aulis | Iphigénie à Aulis |
| Iphigeneia in Tauris | Iphigénie en Tauride |
| Iphigenia | Iphigénie |
| Iphigenia in Tauris | Iphigénie en Tauride |
| Iphigenie auf Tauris | Iphigénie en Tauride |
| Iphigénie en Aulide | Iphigénie en Aulide |
| Iphigénie en Tauride | Iphigénie en Tauride |
| Iphis | Iphis et Ianthé |
| Iphitos | Iphitos |
| Ipil | Merbau |
| IPNI | International Plant Names Index |
| IPO | Initial Public Offering |
| IPod | IPod |
| IPod mini | IPod mini |
| IPod nano | IPod nano |
| IPod shuffle | IPod shuffle |
| IPod touch | IPod touch |
| IPodLinux | IPodLinux |
| Ipomoea | Ipomée |
| Ipomoea aquatica | Ipomoea aquatica |
| Ipomoea pes-caprae | Patate à Durand |
| Ipomoea tricolor | Ipomoea tricolor |
| Ipomoea violacea | Ipomoea tricolor |
| IPOOO | IPOOOO |
| Ipotane | Silène |
| Ippolito Rosellini | Ippolito Rosellini |
| Ipsach | Ipsach |
| IPsec | IPsec |
| Ipswich | Ipswich |
| IPTV | Internet Protocol Television |
| IPU | Ipu |
| IPX | Internetwork packet exchange |
| IQ | Q.I. |
| Iqaluit | Iqaluit |
| Iqama | Iqama |
| IQue Player | IQue Player |
| Iquique | Iquique |
| Iquitos | Iquitos |
| IR | IR |
| IR Tanger | Ittihad de Tanger |
| IRA | IRA |
| Ira Levin | Ira Levin |
| IRAF | Image Reduction and Analysis Facility |
| Iragna | Iragna |
| Irahovec | Irahovec |
| Irak | Irak |
| Iraki | Irakien |
| Irakli Tsereteli | Irakli Tsereteli |
| Iram of the Pillars | Iram |
| Iran | Iran |
| Iran Air | Iran Air |
| Iran Air Tours | Iran Air Tours |
| Iran crisis | Crise irano-soviétique |
| Iran hostage crisis | Crise iranienne des otages |
| Iran lifts ban of CNN | CNN pourra travailler en Iran |
| Iran-Contra Affair | Affaire Iran-Contra |
| Iran-Iraq War | Guerre Iran-Irak |
| Irancy | Irancy |
| Irani | Iranien |
| Iranian | Iranien |
| Iranian architecture | Architecture iranienne |
| Iranian Art | Art iranien |
| Iranian calendar | Calendrier persan |
| Iranian cuisine | Cuisine iranienne |
| Iranian Kurdistan | Kurdistan iranien |
| Iranian languages | Langues iraniennes |
| Iranian oil bourse | Bourse iranienne du pétrole |
| Iranian peoples | Peuples iraniens |
| Iranian president says move Israel to Europe | Le président iranien propose de déplacer Israël en Europe |
| Iranian Revolution | Révolution iranienne |
| Iranian rial | Rial iranien |
| Iranian toman | Toman |
| Iranian woman | Iranienne |
| Iranian women | Femme iranienne |
| Iraq | Irak |
