| huéspeda | Gast |
| HVD | Holographic Versatile Disc |
| Hvergelmir | Hvergelmir |
| Hwang Woo-Suk | Hwang Woo-suk |
| Hyacinthaceae | Hyazinthengewächse |
| Hyacinthe Rigaud | Hyacinthe Rigaud |
| Hyacinthus | Hyazinthen |
| Hyaena hyaena | Streifenhyäne |
| Hyaenidae | Hyänen |
| Hybrid Fibre Coaxial | Hybrid Fiber Coax |
| HYDE | Hyde |
| Hyde Park | Hyde Park |
| Hyderabad | Hyderabad |
| Hydra | Wasserschlange |
| Hydrangea | Hortensien |
| Hydrangeaceae | Hortensiengewächse |
| Hydrastis | Gelbwurzel |
| Hydrobates pelagicus | Sturmschwalbe |
| Hydrobatidae | Sturmschwalben |
| Hydrocharitaceae | Froschbissgewächse |
| Hydrochoerus hydrochaeris | Capybara |
| Hydrocotyle | Wassernabel |
| Hydrodamalis gigas | Stellers Seekuh |
| Hydrophilidae | Wasserkäfer |
| Hydrophyllaceae | Wasserblattgewächse |
| Hydropotes inermis | Wasserreh |
| Hydroprogne caspia | Raubseeschwalbe |
| Hydrozoa | Hydrozoen |
| Hydrurga leptonyx | Seeleopard |
| Hydrus | Kleine Wasserschlange |
| Hyla | Laubfrosch |
| Hyla arborea | Europäischer Laubfrosch |
| Hyla meridionalis | Mittelmeer-Laubfrosch |
| Hyladelphys | Hyladelphys kalinowskii |
| Hylaeosaurus | Hylaeosaurus |
| Hylidae | Laubfrösche |
| Hylobates | Gibbons |
| Hylobates lar | Weißhandgibbon |
| Hylobatidae | Gibbons |
| Hylocereus | Drachenfrucht |
| Hylochoerus meinertzhageni | Riesenwaldschwein |
| Hyman Rickover | Hyman Rickover |
| Hymenocallis | Schönhäutchen |
| Hymenolaimus malacorhynchos | Saumschnabelente |
| Hymenolaimus malacorhynchus | Saumschnabelente |
| Hymenomycetes | Ständerpilze |
| Hymenomycotina | Hutpilze |
| Hymenoptera | Hautflügler |
| Hymir | Hymir |
| Hymne Chérifien | Hymne Chérifien |
| Hymne Monégasque | Hymne Monégasque |
| Hymni i Flamurit | Himni i Flamurit |
| Hyndluljód | Hyndlulióð |
| Hyoscyamus niger | Schwarzes Bilsenkraut |
| Hypacrosaurus | Hypacrosaurus |
| Hypericaceae | Johanniskrautgewächse |
| Hypericum | Johanniskräuter |
| Hypericum perforatum | Echtes Johanniskraut |
| Hyperoodon | Entenwale |
| Hypertext Transfer Protocol | Hypertext Transfer Protocol |
| HyperThreading | Hyper-Threading |
| HyperTransport | HyperTransport |
| Hypervisor | Hypervisor |
| Hyperón | Hyperon |
| Hyphaene | Doumpalmen |
| Hypochaeris | Ferkelkräuter |
| Hypospadias | Hypospadie |
| Hypotaenidia pacifica | Rotschnabelralle |
| Hypsilophodon | Hypsilophodon |
| hypócrita | heuchlerisch |
| Hyracoidea | Schliefer |
| Hyracotherium | Hyracotherium |
| Hyssopus officinalis | Ysop |
| Hystricidae | Stachelschweine |
| Hystrix | Eigentliche Stachelschweine |
| Hystrix cristata | Gewöhnliches Stachelschwein |
| Hyundai Accent | Hyundai Accent |
| Hyundai coupe | Hyundai Coupé |
| Hyundai Motor Company | Hyundai Motor Company |
| Hyvinkää | Hyvinkää |
| hábil | gut |
| hábilmente | geschickt |
| hábitat | Habitat |
| hábitat animal | Tierhabitat |
| hábitat humano | menschlicher Lebensraum |
| hábito | Sucht |
