| HC | Henry Corbin | French philosopher and and scholar of Islam (1903–1978) |
| HF | Henry Fogg | fictional character from The Magicians |
| HF | Henry Forder | New Zealand mathematician (1889–1981) |
| HF | Henry Frick | American politician (1795-1844) |
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Henry IV, Holy Roman Emperor | Holy Roman Emperor from 1084 to 1105 |
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Henry James | American and British writer (1843–1916) |
| HK | Henry Kavanaugh | fictional character from From |
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Henry Paulson | 74th United States Secretary of the Treasury |
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Henry Sacheverell | English High Church cleric 1674-1724 (1674–1724) |
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Henry V | play by Shakespeare |
| HW | Henry Winter | |
| H | Hephaestus | fictional character from Is It Wrong to Try to Pick Up Girls in a Dungeon? |
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H.E.R. | American R&B singer |
| HTP | Heraclitus the Paradoxographer | Hellenistic writer on mythology |
| HB | Herb Baumeister | American serial killer (1947-1996) |
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Herbert Marcuse | German philosopher, sociologist, and political theorist (1898–1979) |
| HS | Herbert Sobel | fictional character from Band of Brothers |
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Herbie Hancock | American jazz pianist and composer (born 1940) |
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Hercule Poirot | fictional character from The Mysterious Affair at Styles |
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Herculez Gomez | American soccer player |
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Herennius Etruscus | Joint 34th Emperor of the Roman Empire |
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Hergé | Belgian comics writer (1907–1983) |
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Herman Brusselmans | Flemish writer |
| HFM | Herman Francis Mark | Austrian American chemist (1895–1992) |
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Hermann Kafka | father of Franz Kafka (1852–1931) |
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Hermann Nitsch | Austrian artist (1938-2022) |
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Hermann Rorschach | Swiss Freudian psychiatrist and psychoanalyst (1885–1922) |
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Hermann Schmitz | German philosopher (1928-2021) |
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Hermann von Helmholtz | German physicist and physiologist (1821-1894) |
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Hermes Trismegistus | |
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Hermione | |
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Hermione Baddeley | British character actress of theatre, film and television (1906-1986) |
| HC | Hernán Cortez | Bolivian weightlifter |
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heroin | chemical compound; opioid most commonly used as a recreational drug for its euphoric effects |
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Herschel Walker | American diplomat and former football player (born 1962) |
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Herta Müller | German-Romanian novelist, poet and essayist (born 1953) |
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Heymann Steinthal | German linguist (1823–1899) |
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H. H. Asquith | 1st Earl of Oxford and Asquith, Prime Minister of the United Kingdom |
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Hidan | fictional character from Naruto |
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Hideki Tojo | Japanese general and politician (1884–1948) |
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Hidetaka Miyazaki | Japanese video game designer and executive (born 1974) |
| H | Hiei | fictional character from Yu Yu Hakusho |
| HY | Hifumi Yamada | fictional character from /works/15917310 |
| H | Higgs | fictional character from Death Stranding |
| HH | Hikaru Hitachiin | fictional character from Ouran High School Host Club |
| HS | Hikaru Shindou | fictional character from Hikaru no Go |
| HM | Hilary Mantel | British writer (1952–2022) |
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Hilary Swank | American actress (born 1974) |
| HVG | Hilda Valentine Goneril | fictional character from Fire Emblem: Three Houses |
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Hillel the Elder | Jewish religious leader of the 1st century |