| Hipólito Yrigoyen | Hipólito Yrigoyen |
| hipónimo | hyponym |
| hipótesis | hypothesis |
| Hipótesis de eficiencia de los mercados | Efficient market hypothesis |
| Hipótesis de Gaia | Gaia hypothesis |
| Hipótesis de Knudson | Knudson hypothesis |
| Hipótesis de la dínamo | Dynamo theory |
| Hipótesis de los kurganes | Kurgan hypothesis |
| Hipótesis de Riemann | Riemann hypothesis |
| Hipótesis del Genio maligno | Evil genius |
| Hipótesis del gran impacto | Giant impact hypothesis |
| Hipótesis del mundo de ARN | RNA world hypothesis |
| Hipótesis del simio acuático | Aquatic ape hypothesis |
| Hipótesis del Zoológico | Zoo hypothesis |
| Hipótesis documentaria | Documentary hypothesis |
| hipótesis endosimbiótica | endosymbiotic theory |
| Hipótesis generalizada de Riemann | Generalized Riemann hypothesis |
| Hipótesis Némesis | Nemesis |
| Hipótesis sobre la Atlántida | Location hypotheses of Atlantis |
| Hipótoo | Hippothoon |
| Hiram Abif | Hiram Abiff |
| Hiram Bingham | Hiram Bingham III |
| Hiram I de Tiro | Hiram I |
| Hiram Stevens Maxim | Hiram Stevens Maxim |
| Hircania | Hyrcania |
| Hiri Motu | Hiri Motu language |
| hiriente | barbed |
| Hiro | Hiroko Shimabukuro |
| Hiro Nakamura | Hiro Nakamura |
| Hiroaki Zakoji | Hiroaki Zakoji |
| Hirohito | Hirohito |
| Hirokazu Tanaka | Hirokazu Tanaka |
| Hiromu Arakawa | Hiromu Arakawa |
| Hiroshi Masuoka | Hiroshi Masuoka |
| Hiroshige | Hiroshige |
| Hiroshima | Hiroshima |
| Hiroya Oku | Hiroya Oku |
| Hiroyuki Takei | Hiroyuki Takei |
| Hirschhorn | Hirschhorn |
| hirsuto | hirsute |
| Hirudina | Hirudin |
| hirudíneo | leech |
| Hirundinidae | Swallow |
| Hirundo daurica | Red-rumped Swallow |
| Hirundo rustica | Barn Swallow |
| Hiryu | Japanese aircraft carrier Hiryū |
