| h acid ... Haase, Helga |
| Haase, Hugo ... Habre, Hissene |
| Habrobracon ... Hadar |
| Hadar ... Hadramawt |
| Hadramawtian ... hag |
| hag ha-asif ... Hague Alliance |
| Hague Conference on Private International Law ... Haile Malakot |
| Haile Selassie I ... Hajduszoboszlo |
| Hajek, Igor ... Halapua, Sitiveni |
| Halas, George ... Halevy, Fromental |
| Halevy, Ludovic ... Halifax, Edward Frederick Lindley Wood, 1st earl of |
| Halifax, Fort ... Hall, Joseph |
| Hall, Joyce C ... Halles, The |
| Hallett, Cape ... Halogeton |
| halon ... Hamalainen, Marja-Liisa |
| Hamamatsu ... Hamelin, Ferdinand Alphonse |
| Hamelin, Louis ... Hamilton, Sir Ian |
| Hamilton, Sir William ... Hammershaimb, Venceslaus Ulricus |
| Hammersmith and Fulham ... Hampton, Wade |
| Hamra', al-Hammadah al- ... Hanauma Bay |
| Hancock ... Handley, Vernon George |
| Handlin, Oscar ... Hanks, Nancy |
| Hanks, Nancy ... Hanseatic League |
| Hanseatic tankard ... hapkido |
| Haplochromis ... Harangozo, Gyula |
| Haraoti ... hardboard |
| hardcore punk ... Hardy, Oliver |
| Hardy, Sir Thomas Masterman, Baronet ... Harimandir |
| Haring Dam ... Harline, Leigh |
| Harling, Frank ... harp |
| harp seal ... Harriman, Florence Jaffray |
| Harriman, Job ... Harrison, Alvin |
| Harrison, Anna ... Hart, Charles |
| Hart, Graeme ... Hartog, Jan de |
| Hartree method ... Harvey, Neil |
| Harvey, Paul ... hashish |
| Hashr, Agha ... Hastings |
| Hastings ... Hatia Islands |
| hatif ... Haugen, Greg |
| Haugesund ... Haute-Loire |
| Haute-Marne ... Hawaii |
| Hawaii ... Hawkesworth, John Stanley |
| Hawking, Stephen W. ... Hay, Sir Gilbert |
| Hay-Bunau-Varilla Treaty ... Haykal, Muhammad Husayn |
| Hayley, William ... Hazel Bishop, Inc. |
| Hazeltine, Alan ... headcut |
| headdress ... Healy, Ted |
| Heaney, Seamus ... heat |
| heat adaptation ... heave |
| heaven ... Hebra, Ferdinand von |
| Hebraic law ... Hector, James |
| Hecuba ... Heermann, Georg |
| Heever, C. M. van den ... Heike monogatari |
| Heil, Jennifer ... Heinz Award in the Arts and Humanities |
| Heinz Company ... Helfer, H. Lawrence |
| Helgaud ... heliotrope |
| heliozoan ... Heller, Michael |
| Heller, Robert ... Helms-Burton law |
| Helms-Museum ... hematinic |
| hematite ... hemitonic scale |
| hemlock ... hemp system |
| Hempel, Carl Gustav ... Hengelo |
| Henghua language ... Henry |
| Henry ... Henry The Young King |
| Henry V ... Hentz, Caroline Lee |
| Henze, Hans Werner ... heptane |
| Heptarchy ... Herbert of Bosham |
| Herbert Peak ... hereditary disease |
| hereditary elliptocytosis ... hermandad |
| Hermann Balk ... Hernandez Colon, Rafael |
| Hernandez de Cordoba, Francisco ... Herold, Christian Friedrich |
| Herold, Ferdinand ... Herrin Massacre |
| herring ... Hertzian cone fracture |
| Hertzian wave ... Hess Oil and Chemical Corporation |
| Hess's law of heat summation ... heteroduplex |
| heterodyne beat ... Heth, Joice |
| Hetherington, Alastair ... hexahedrite |
| hexameter ... Hibbert, Toots |
| Hibbertia ... hide glue |
| hide grease ... Higginson, Thomas Wentworth |
| Higgs field ... High Plains |
| High Plateau ... high-rise building |
| high-security prison ... Highway Revenue Act |
| Highway, Tomson ... Hildebrand, Bruno |
| Hildebrand, Joel H. ... Hill, Patty Smith |
| Hill, Phil ... Hillsborough |
| Hillsborough ... Himyar |
| hin ... Hindustani language |
| Hindustani music ... Hippo |
| hippocampus ... Hiroshima |
| Hiroshima ... Hispano-Roman |
| Hispano-Suiza ... History of Science, Museum of the |
| History of Woman Suffrage ... Hjarne, Harald Gabriel |
| Hjelm, Peter Jacob ... Hoadley, Silas |
| Hoagland's solution ... hocha |
| Hochbrucker, Celestin ... Hoel, Halvor |
| Hoel, Sigurd ... Hofmann, Josef Casimir |
| Hofmann, Melchior ... hogstra domstolen |
| hogweed ... Hokusai |
| hol ha-mo'ed ... Holkar Dynasty |
| Holkeri, Harri ... Holloman Air Force Base |
| hollow box girder ... holmiid |
| holmium ... Holt, Tory |
| Holt, Winifred ... Holy Spirit, Cathedral of the |
| Holy Synod ... homelessness |
| homeobox ... homocentric spheres, theory of |
| homocercal tail ... homosexuality |
| homosphere ... honeybee |
| honeycomb ... Honoria |
| honorific ... hook echo |
| Hook, Sidney ... Hope Theatre |
| Hope, A.D. ... Hopper, Edward |
| Hopper, Grace Murray ... horizontal merger |
| horizontal meridian circle ... hornbill |
| hornblende ... hornyhead chub |
| horo ... horseshoe kidney |
| horseshoe pitching ... Hoskyns, Sir Edwyn Clement, 13th Baronet |
| Hosmer, Harriet Goodhue ... hot-air engine |
| hot-blast stove ... Hou I |
| Hou T'u ... House, Son |
| House-Grey Memorandum ... Houtman, Cornelis and Frederik de |
| Houtman, Cornelis de ... Howard, Sir Robert |
| Howard, Trevor ... HQT |
| Hrabal, Bohumil ... Hsueh-feng Mountains |
| Hsueh-shan Mountain Range ... Huallaga River |
| Hualpaya ... Huayllaca |
| Huayna Capac ... Huddersfield Rugby Union Football Club |
| huddle ... Huffington Post, The |
| Huffington, Arianna ... Hughes, Ted |
| Hughes, Thomas ... Hukuang |
| hula ... human embryology |
| human epidermal growth factor receptor 2 ... Humber Bridge |
| Humber River ... humite group |
| Hummel, Johann Nepomuk ... Hundertwasser, Friedensreich |
| hundi ... Hunt, E(verette) Howard, Jr. |
| Hunt, Earl B. ... Hunters' Lodges |
| hunting ... Huppert, Isabelle Anne |
| huqin ... Husayn |
| Husayn 'Ali Khan Baraha Sayyid ... Huston, Anjelica |
| Huston, John ... Huxley, Sir Julian |
| Huxley, T.H. ... Hyaenodontidae |
| hyakusho ... Hyde, Philip Jean |
| Hyde, Sir Nicholas ... hydraulis |
| hydrazide ... hydrogen |
| hydrogen bond ... hydronium ion |
| hydronymy ... Hyeniales |
| Hyeres ... Hyndman, Henry Mayers |
| Hynek, J. Allen ... hyperfunction |
| hypergamy ... Hypertragulid |
| hypertrichosis ... Hypodorian mode |
| Hypoestes ... hypothetical proposition |
| hypothetical syllogism ... |
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