| IRAS | IRAS |
| irascible | lättretlig |
| irasciblere | vrede |
| irate | vred |
| Irazú Volcano | Irazú |
| Irbit | Irbit |
| IRC bot | IRC-bot |
| IRC flood | Mark Ellis |
| IRCnet | IRCNet |
| Ireland | Irland |
| Ireland national rugby union team | Irlands herrlandslag i rugby union |
| Irena Sendler | Irena Sendlerowa |
| Irenaeus | Irenaeus |
| Irene | Irene |
| Irene Angelina | Irene |
| Irene Doukaina | Eirene Doukaina |
| Irene Dunne | Irene Dunne |
| Irenism | Irenik |
| Irgun | Irgun |
| iridescence | regnbågsskimmer |
| iridescent | iriserande |
| Iridescent shark | Hajmal |
| Iridium | Iridium |
| Iridology | Irisdiagnostik |
| Irina Björklund | Irina Björklund |
| Irina Slutskaya | Irina Slutskaja |
| Iringa Region | Iringa |
| Iriomote | Iriomote |
| Iriomote Cat | Prionailurus iriomotensis |
| iris | iris |
| Iris Murdoch | Iris Murdoch |
| Iris oratoria | Iris |
| IRIS-T | IRIS-T |
| Irish | irländska |
| Irish Civil War | Irländska inbördeskriget |
| Irish coffee | Irish coffee |
| Irish dance | Irish dance |
| Irish Draught | Irish draught |
| Irish Elk | Jättehjort |
| Irish euro coins | Irländska euromynt |
| Irish Free State | Irländska fristaten |
| Irish Gaelic | iriska |
| Irish Horse | Hunterhäst |
| Irish National Liberation Army | Irish National Liberation Army |
| Irish Premier League | FA Premier League |
| Irish proverbs | Irländska ordspråk |
| Irish Republican Army | IRA |
| Irish Sea | Irländska sjön |
| Irish vehicle registration plates | Registreringsskyltar i USA |
| Irish War of Independence | Irländska frihetskriget |
| Irishman | irländare |
| Irishwoman | irländska |
| Iriver | Iriver |
| IRIX | IRIX |
| Irizar | Irizar |
| irk | reta |
| irksome | tröttsam |
| Irkutsk | Irkutsk |
| Irkutsk Airport | Irkutsk |
| Irkutsk International Airport | Irkutsk |
| Irkutsk Oblast | Irkutsk oblast |
