| Iris oratoria | Iris oratorius | Iris orchioides |
| Iris orientalis | Iris orjenii | Iris palaestina |
| Iris pallasii | Iris pallida | Iris pamphylica |
| Iris paradoxa | Iris parvula | Iris persica |
| Iris petrana | Iris planifolia | Iris platyptera |
| Iris pontica | Iris popovii | Iris porphyrochrysa |
| Iris postii | Iris potaninii | Iris prismatica |
| Iris proantha | Iris psammocola | Iris pseudacorus |
| Iris pseudocapnoides | Iris pseudocaucasica | Iris pseudonotha |
| Iris pseudopumila | Iris pskemensis | Iris pumila |
| Iris purdyi | Iris purpureobractea | Iris qinghainica |
| Iris regis-uzziae | Iris reichenbachii | Iris reticulata |
| Iris revoluta | Iris robusta | Iris rosenbachiana |
| Iris rossii | Iris ruthenica | Iris sancti-cyri |
| Iris sanguinea | Iris sari | Iris savannarum |
| Iris scariosa | Iris schachtii | Iris schelkowinkowii |
| Iris schischkinii | Iris serotina | Iris setosa |
| Iris setosothungbergii | Iris sibirica | Iris sintenisii |
| Iris songarica | Iris speculatrix | Iris sprengeri |
| Iris spuria | Iris staintonii | Iris stenophylla |
| Iris stocksii | Iris stolonifera | Iris suaveolens |
| Iris subdecolorata | Iris subdichotoma | Iris susiana |
| Iris swensoniana | Iris tadshikorum | Iris taochia |
| Iris tectorum | Iris tenax | Iris tenuifolia |
| Iris tenuis | Iris tenuissima | Iris thompsonii |
| Iris tigridia | Iris timofejewii | Iris tingitana |
| Iris tridentata | Iris tubergeniana | Iris tuberosa |
| Iris typhifolia | Iris unguicularis | Iris uniflora |
| Iris variegata | Iris vartanii | Iris ventricosa |
| Iris verna | Iris versicolor | Iris vicaria |
| Iris vinicolor | Iris violipurpurea | Iris virginica |
| Iris vorobievii | Iris vvedenskyi | Iris warleyensis |
| Iris wattii | Iris wendelboi | Iris westii |
| Iris willmottiana | Iris wilsonii | Iris winkleri |
| Iris winogradowii | Iris xanthochlora | Iris xanthospuria |
| Iris xiphium | Iris yebrudii | Irish (tiếng) |
| Irish Albums Chart | Irish coffee | Irish Elk |
| Irish Football Association | Irish Red and White Setter | Irish Setter |
| Irish Singles Chart | Irish Son | Irish Stew |
| Irishtown, Quận Clinton, Illinois | Irissarry | Irituia |
| Iriver | Iriveri | Irixoa |
| Iriyama Anna | Irkal, Manvi | Irkalgada, Koppal |
| Irkut | Irkut (hãng sản xuất máy bay) | Irkut MC-21 |
| Irkut MS-21 | Irkutsk | Irkutsk (huyện) |
| Irkutsk (tỉnh) | Irkutsky (huyện) | Irlaganlı, Pamukkale |
| Irlamaz, Turgutlu | Irlapodu, Kanakapura | Irlbach |
| Irlbachia amplissima | Irlbachia elegans | Irlbachia frigida |
| Irlbachia nemorosa | Irlbachia pedunculata | Irlbachia phelpsiana |
| Irlbachia plantaginifolia | Irlbachia poeppigii | Irlbachia pratensis |
| Irlbachia pulcherrima | Irlbachia pumila | Irlbachia ramossisima |
| Irlbachia speciosa | Irlbachia tatei | Irles |
| Irma (BS) | Irma Córdova Palma | Irma Cordova Palma |
| Irma Grese | Irma, Lombardia | Irmaç, Kangal |
| Irmak, Pazar | Irmakboyu, Bozova | Irmakköy, İspir |
| Irmakköy, Cide | Irmakköy, Hasankeyf | Irmaklı, Ceyhan |
| Irmaklı, Darende | Irmaklı, Mut | Irmaklı, Seydişehir |
| Irmaksırtı, Çarşamba | Irmakyanı, Yusufeli | Irmakyeniköy, Pazar |
| Irmaos lobatus | Irmaos sechellarum | Irmenach |
| Irn-Bru | Irndorf | Irnfritz-Messern |
| Irodouër | Irody, Udupi | Irolita |
| Iron | Iron Beam | Iron Brew |
| Iron Duke (lớp thiết giáp hạm) | Iron Fist (phim truyền hình) | Iron Junction, Minnesota |
| Iron Maiden | Iron Man | Iron Man (định hướng) |
| Iron Man (phim 2008) | Iron Man (phim) | Iron Man 1 |
| Iron Man 2 | Iron Man 3 | Iron Ridge, Wisconsin |
| Iron River, Wisconsin | Iron Warriors: T-72 Tank Commander | Iron, Aisne |
| Iron, Quận Iron, Missouri | Iron, Quận St. Francois, Missouri | Irondale, Alabama |
| Irondale, Ohio | Ironeus duplex | Ironeus mutatus |
| Ironeus pulcher | IronFX | Ironic (bài hát) |
| Ironopolia sobriella | Ironoquia dubia | Ironoquia kaskaskia |
| Ironoquia lyrata | Ironoquia parvula | Ironoquia plattensis |
| Ironoquia punctatissima | Ironsin | Ironton (làng thuộc quận Sauk, Wisconsin) |
| Ironton (thị trấn thuộc quận Sauk, Wisconsin) | Ironton (thị trấn), Quận Sauk, Wisconsin | Ironton, Minnesota |
| Ironton, Ohio | Iroquois, Illinois | Iroquois, Quận Iroquois, Illinois |
| Irota | Irouléguy | Irpex |
| Irpicodon | Irpicodon pendulus | Irpin |
| Irreemplazable | Irrel | Irreplaceable |
| Irreville | Irrhausen | Irritator |
| Irritator challengeri | Irrlicht | Irsch |
| Irschenberg | Irsee | Irshava |
| Irshava (huyện) | IRST | Irtysh |
| Iruña de Oca/Iruña Oka | Irubanahalli, Nagamangala | Iruelos |
| Irueste | Irugur | Iruka |
| Iruka Umino | Iruma, Saitama | Irun |
| Irundiaba waorani | Irundisaua balteata | Irundisaua forsteri |
| Irundisaua heloisae | Irundisaua moacyri | Irundisaua ocularis |
| Irundisaua punctata | Irundisaua ucayalensis | Irupi |
| Irura | Iruraiz-Gauna | Irurtzun |
| Iruvakki, Sagar | Iruvidi, Heggadadevankote | Irvathur, Bantval |
| Irvathuru, Karkal | Irven Spence | Irvillac |
| Irvin Berlin | Irvin McDowell | Irvin Spence |
| Irvine Page | Irvine, California | Irvine, Quận Benson, Bắc Dakota |
| Irving Fisher | Irving Langmuir | Irving Weissman |
| Irving, Illinois | Irving, Quận Brown, Kansas | Irving, Quận Montgomery, Illinois |
| Irving, Texas | Irving, Wisconsin | Irvingbaileya |
| Irvingbaileya australis | Irvingia | Irvingia excelsa |
| Irvingia gabonensis | Irvingia grandifolia | Irvingia malayana |
| Irvingia robur | Irvingia smithii | Irvingia tenuinucleata |
| Irvingiaceae | Irvington, Illinois | Irvington, Quận Kossuth, Iowa |
| Irvington, Quận Washington, Illinois | Irvona, Pennsylvania | Irwin Murray Brodo |
