| huée | boo |
| huées | booing |
| Huétor-Tájar | Huétor Tájar |
| huître | oyster |
| huîtrier | oystercatcher |
| Huîtrier de Bachman | American Black Oystercatcher |
| Huîtrier de Moquin | African Black Oystercatcher |
| Huîtrier des Canaries | Canarian Black Oystercatcher |
| Huîtrier des Chatham | Chatham Island Oystercatcher |
| Huîtrier fuligineux | Sooty Oystercatcher |
| Huîtrier pie | Eurasian Oystercatcher |
| Huîtrier à long bec | Pied Oystercatcher |
| HVAC | HVAC |
| Hvalsø | Hvalsø |
| Hvalvatn | Hvalvatn |
| Hvannadalshnjúkur | Hvannadalshnúkur |
| Hvar | Hvar |
| HVDC | High-voltage direct current |
| Hveragerði | Hveragerði |
| Hvergelmir | Hvergelmir |
| Hvidovre | Hvidovre |
| Hvidovre IF | Hvidovre IF |
| Hvis Lyset Tar Oss | Hvis lyset tar oss |
| Hwaiien | Hawaiian language |
| Hwair | Hwair |
| Hwang Sok-yong | Hwang Suk-young |
| Hwang Woo-suk | Hwang Woo-Suk |
| Hwanghae | Hwanghae |
| Hwicce | Hwicce |
| Hyacinthaceae | Hyacinthaceae |
| hyacinthe | hyacinth |
| Hyacinthe de Cracovie | Saint Hyacinth |
| Hyacinthe Klosé | Hyacinthe Klosé |
| Hyacinthe Rigaud | Hyacinthe Rigaud |
| Hyacinthe Thiandoum | Hyacinthe Thiandoum |
| Hyacinthies | Hyacinthia |
| Hyacinthoides | Hyacinthoides |
| Hyacinthus | Hyacinth |
| Hyacinthus orientalis | Hyacinthus orientalis |
| Hyades | Hyades |
| Hyaena | Hyæna |
| Hyaenidae | Hyena |
| Hyaenodon | Hyaenodon |
| hyaloplasme | cytosol |
| hybridation | hybridisation |
| Hybridation fluorescente in-situ | Fluorescent in situ hybridization |
| Hybridation in situ | In situ hybridization |
| Hybridation sur filtre | Filter hybridization |
| hybride | crossbred |
| Hybride de thé | Hybrid Tea |
| Hybride Panthera | Panthera hybrid |
| Hybride producteur direct | Hybrid grapes |
| Hybrides Panthera | Panthera hybrid |
| Hyde | Hyde |
| Hyde Parker | Sir Hyde Parker |
| Hyderabad | Hyderabad |
| Hyderâbâd | Hyderabad |
| Hydra | Hydra |
| Hydramnios | Polyhydramnios |
| Hydranencéphalie | Hydranencephaly |
| Hydrangeaceae | Hydrangeaceae |
| hydratant | moisturizer |
| hydrate | hydrate |
| hydrate de carbone | carbohydrate |
| hydraulique | hydraulics |
| hydraulique agricole | agricultural hydraulics |
| hydravion | seaplane |
| Hydrazone | Hydrazone |
| Hydre | Hydra |
| Hydre de Lerne | Lernaean Hydra |
| Hydre femelle | Hydra |
| Hydre mâle | Hydrus |
| Hydreliox | Hydreliox |
| Hydrie | Hydria |
| Hydro-Man | Hydro-Man |
| hydro-écologie | aquatic ecology |
| Hydrobatinae | Storm-petrel |
| hydrobiologie | hydrobiology |
| Hydrocarbone | Carbohydrate |
| hydrocarbure | hydrocarbon |
