| 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 | Irwin Rose |
| Irwin, Illinois | Irwin, Iowa | Irwin, Pennsylvania |
| Irwin, Quận Venango, Pennsylvania | Irwinomyia argentea | Irwinomyia aurea |
| Irxleben | Iry-Hor | Iryanthera campinae |
| Iryanthera coriacea | Iryanthera crassifolia | Iryanthera dialyandra |
| Iryanthera elliptica | Iryanthera grandis | Iryanthera hostmannii |
| Iryanthera juruensis | Iryanthera laevis | Iryanthera lancifolia |
| Iryanthera macrophylla | Iryanthera megistocarpa | Iryanthera obovata |
| Iryanthera olacoides | Iryanthera paradoxa | Iryanthera paraensis |
| Iryanthera polyneura | Iryanthera sagotiana | Iryanthera tessmannii |
| Iryanthera tricornis | Iryna Khalip | Iryna Zhuravska |
| Κ | IS | IS (Infinite Stratos) |
| Is It Scary | Is Survived By | Is There for Honest Poverty |
| Is This It | IS-2 | IS-3 |
| IS-7 | Is-en-Bassigny | Is-sur-Tille |
| Isa | Isa, Kagoshima | Isaac |
| Isaac (ca sĩ Việt Nam) | Isaac (ca sĩ) | Isaac (Kinh Thánh) |
| Isaac (nhân vật Kinh Thánh) | Isaac Albéniz | Isaac Albeniz |
| Isaac Asimov | Isaac Barrow | Isaac Bashevis Singer |
| Isaac Hayden | Isaac Hempstead-Wright | Isaac Ilyich Levitan |
| Isaac Levitan | Isaac Merritt Singer | Isaac Newton |
| Isaac Sackey | Isaac Singer | Isaak Dunayevsky |
| Isaak Newton | Isaakios I Komnenos | Isaakios II Angelos |
| Isaan | Isaías Coelho | Isaba |
| Isabel Allende | Isabel dos Santos | Isabel I của Castille |
| Isabel II của Tây Ban Nha | Isabel Lucas | Isabel Martínez de Perón |
| Isabel, Kansas | Isabel, Leyte | Isabel, Quận Benson, Bắc Dakota |
| Isabel, Quận Fulton, Illinois | Isabela (tỉnh) | Isabela, Basilan |
| Isabelia | Isabelia pabstii | Isabelia pulchella |
| Isabelia violacea | Isabelia virginalis | Isabella |
| Isabella Abbott | Isabella Andreini | Isabella của Bồ Đào Nha |
| Isabella của Pháp | Isabella di Morra | Isabella Garcia-Shapiro |
| Isabella I của Castilla | Isabella I của Castille | Isabella II của Tây Ban Nha |
| Isabella Leong | Isabella Rossellini | Isabella Swan |
| Isabella van Vollenhoven | Isabelle Adjani | Isabelle Caro |
| Isabelle Carré | Isabelle Huppert | Isabelle, Wisconsin |
| Isabelloscia heroldi | Isabu | Isacantha |
| Isacanthodes | Isaccea | Isachne |
| Isachne albens | Isachne albomarginata | Isachne angladei |
| Isachne angolensis | Isachne angustifolia | Isachne arfakensis |
| Isachne arundinacea | Isachne ascendens | Isachne bicolor |
| Isachne borii | Isachne bourneorum | Isachne brassii |
| Isachne buettneri | Isachne cambodiensis | Isachne carolinensis |
| Isachne chevalieri | Isachne ciliatiflora | Isachne clarkei |
| Isachne clementis | Isachne cochinchinensis | Isachne comata |
| Isachne conferta | Isachne confusa | Isachne deccanensis |
| Isachne diabolica | Isachne dimyloides | Isachne dioica |
| Isachne disperma | Isachne distichophylla | Isachne eberhardtii |
| Isachne elegans | Isachne fischeri | Isachne globosa |
| Isachne goiasensis | Isachne gossweileri | Isachne gracilis |
| Isachne guangxiensis | Isachne guineensis | Isachne hainanensis |
| Isachne henryi | Isachne himalaica | Isachne hirtissima |
| Isachne hoi | Isachne homonyma | Isachne jayachandranii |
| Isachne kinabaluensis | Isachne kiyalaensis | Isachne kunthiana |
| Isachne langkawiensis | Isachne leersioides | Isachne ligulata |
| Isachne lisboae | Isachne lutchuensis | Isachne mauritiana |
| Isachne meeboldii | Isachne miliacea | Isachne multiflora |
| Isachne muscicola | Isachne myosotis | Isachne mysorensis |
| Isachne nipponensis | Isachne obtecta | Isachne oreades |
| Isachne pallens | Isachne pangerangensis | Isachne pauciflora |
| Isachne petelotii | Isachne polygonoides | Isachne puberula |
| Isachne pubescens | Isachne pulchella | Isachne pygmaea |
| Isachne rigens | Isachne rigidifolia | Isachne salzmannii |
| Isachne saxicola | Isachne scabrosa | Isachne schmidtii |
| Isachne setosa | Isachne sikkimensis | Isachne smitinandiana |
| Isachne surgens | Isachne swaminathanii | Isachne sylvestris |
| Isachne trachycaula | Isachne truncata | Isachne vaughanii |
| Isachne veldkampii | Isachne venusta | Isachne villosa |
| Isachne vitiensis | Isachne walkeri | ISAD(G) |
| Isadelphina | Isadelphina albistellata | Isadelphina cheilosema |
| Isadelphina griseifasciata | Isadelphina lacteifascia | Isadelphina mariaeclarae |
| Isadelphina retracta | Isadelphina rufaria | Isadelphina vinacea |
| Isadelphina xylochroa | Isadelphus armatus | Isadelphus caudatus |
| Isadelphus compressus | Isadelphus coriarius | Isadelphus cressonii |
| Isadelphus gallicola | Isadelphus inimicus | Isadelphus pusillus |
| Isadora Duncan | Isadore Singer | ISAF |
| Isafarus calceolus | Isagarh | Isahakyan, Shirak |
| Isahaya, Nagasaki | Isaho Wake no Mikoto | Isaiah |
| Isaiah Washington | Isaias Afewerki | Isaipriya |
| Isak N Jiyeon | Isaklinsky (huyện) | Isala |
| Isala punctata | Isalnita | Isaloides |
| Isaloides putus | Isaloides toussainti | Isaloides yollotl |
| Isambard Kingdom Brunel | Isami Kondō | Isami Kondo |
| Isami Kondou | Isampur, Shorapur | Isamu Akasaki |
| Isan | Isana | Isanda |
| Isanda hemprichi | Isanda holdsworthana | Isanda holdsworthiana |
| Isandria | Isandria (Geometridae) | Isandria (Ichneumonidae) |
| Isandria spiniventris | Isandrina | Isandrina nutans |
| Isanitella | Isanitella pabstii | Isanosaurus |
| Isanthrene aterrima | Isanthrene atrizonata | Isanthrene azia |
| Isanthrene basifera | Isanthrene basiferoides | Isanthrene cajetani |
| Isanthrene cazador | Isanthrene championi | Isanthrene colimae |
| Isanthrene columbiana | Isanthrene crabrionides | Isanthrene crabroniformis |
