| huérfana | orphan |
| huérfano | fatherless |
| huérfano de madre | motherless |
| huérfano de padre | fatherless |
| huésped | guest |
| huéspeda | guest |
| Huétor-Tájar | Huétor Tájar |
| HVD | Holographic Versatile Disc |
| Hvergelmir | Hvergelmir |
| Hversu Noregr byggdist | Hversu Noregr byggðist |
| Hwair | Hwair |
| Hwang Woo-Suk | Hwang Woo-Suk |
| Hwarangdo | Hwa Rang Do |
| Hyacinthaceae | Hyacinthaceae |
| Hyacinthe Rigaud | Hyacinthe Rigaud |
| Hyacinthus | Hyacinth |
| Hyaenidae | Hyena |
| Hyaenodon | Hyaenodon |
| Hyakujuu Sentai Gaoranger | Hyakujuu Sentai Gaoranger |
| Hybrid Fibre Coaxial | Hybrid fibre-coaxial |
| HYDE | Hyde |
| Hyderabad | Hyderabad |
| Hydra | Hydra |
| Hydra viridis | Hydra viridis |
| Hydrangea macrophylla | Hydrangea macrophylla |
| Hydrangeaceae | Hydrangeaceae |
| Hydro-Man | Hydro-Man |
| Hydrobates pelagicus | European Storm-petrel |
| Hydrobatidae | Storm-petrel |
| Hydrocharitaceae | Hydrocharitaceae |
| Hydrocotyle | Hydrocotyle |
| Hydroida | Hydroida |
| Hydrophilidae | Hydrophilidae |
| Hydrophyllaceae | Hydrophyllaceae |
| Hydrosaurus pustulatus | Sailfin lizard |
| Hydrozoa | Hydrozoa |
| Hydrurga leptonyx | Leopard Seal |
| Hydrus | Hydrus |
| Hyla | Hyla |
| Hyla arborea | European tree frog |
| Hyla meridionalis | Hyla meridionalis |
| Hylaeosaurus | Hylaeosaurus |
| Hylobates | Gibbon |
| Hylobates lar | Lar Gibbon |
| Hylobatidae | Gibbon |
| Hylocereus | Hylocereus |
| Hymenocallis | Hymenocallis |
| Hymenolaimus malacorhynchos | Blue Duck |
| Hymenolaimus malacorhynchus | Blue Duck |
| Hymenomycetes | Hymenomycete |
| Hymenomycotina | Hymenomycotina |
| Hymenophyllaceae | Hymenophyllaceae |
| Hymenoptera | Hymenoptera |
| Hymir | Hymir |
| Hymiskviða | Hymiskviða |
| Hymne Chérifien | Hymne Chérifien |
| Hymne Monégasque | Hymne Monégasque |
| Hymni i Flamurit | Himni i Flamurit |
| Hyndluljód | Hyndluljóð |
| Hypacrosaurus | Hypacrosaurus |
| Hype | A hype |
| Hypericaceae | Clusiaceae |
| Hypericum | Hypericum |
| Hypericum tetrapterum | Hypericum tetrapterum |
| Hyperoodon | Bottlenose whale |
| Hypertext Transfer Protocol | Hypertext Transfer Protocol |
| HyperThreading | Hyper-threading |
| HyperTransport | HyperTransport |
| Hypervisor | Hypervisor |
| Hyphaene | Hyphaene |
| Hypochaeris | Hypochaeris |
| Hypotaenidia pacifica | Tahitian Red-billed Rail |
| Hypsilophodon | Hypsilophodon |
| Hypsiprymnodontidae | Hypsiprymnodontidae |
| Hyracotherium | Hyracotherium |
| Hyrule | Hyrule |
| Hyrulian | Hyrule |
| Hystricidae | Old World porcupine |
| Hystrix | Hystrix |
| Hystrix brachyura | Malayan Porcupine |
| Hystrix cristata | Crested Porcupine |
| Hystrix indica | Indian Porcupine |
| Hyundai Accent | Hyundai Accent |
| Hyundai coupe | Hyundai Tiburon |
| Hyundai Motor Company | Hyundai Motor Company |
| Hyvinkää | Hyvinkää |
| Hyōga | Cygnus Hyoga |
| hábil | cunning |
| hábilmente | adequately |
| hábitat | habitat |
