Haber, Fritz (1868–1934)

Hadamard, Jacques Salomon (1865–1963)

Hadfield, Robert Abbott (1858–1940)

Hadley, John (1682–1744)

Haeckel, Ernst Heinrich Philipp August (1834–1919)

Haffkine, Waldemar Mordecai Wolff (1860–1930)

Hagenbeck, Carl (1844–1913)

Hahn, Otto (1879–1968)

Hahnemann, (Christian Friedrich) Samuel (1755–1843)

Haldane, Frederick Duncan Michael (1951– )

Haldane, J(ohn) B(urdon) S(anderson) (1892–1964)

Haldane, John Scott (1860–1936)

Hale, George Ellery (1868–1938)

Hales, Stephen (1677–1761)

Hall and Héroult, Charles Martin Hall (1863–1914) and Paul Louis Toussaint Héroult(1863–1914) (1863–1914)

Hall, Asaph (1829–1907)

Hall, Charles Martin (1863–1914)

Hall, Chester Moor (1703–1771)

Hall, Edwin H(erbert) (1855–1938)

Hall, James (1761–1832)

Hall, Jeffrey (Connor) (1945– )

Hall, John Lewis “Jan” (1934– )

Hall, Marshall (1790–1857)

Hall, Philip (1904–1982)

Haller, Albrecht von (1708–1777)

Halley, Edmond (1656–1742)

Hallidie, Andrew (Smith) (1836–1900)

Halmos, Paul R(ichard) (1916–2006)

Halsted, William Stewart (1852–1922)

Hamburger, Viktor (1900–2001)

Hamilton, Alice (1869–1970)

Hamilton, William D(onald) (1936–2000)

Hamilton, William Rowan (1805–1865)

Hammick, Dalziel Llewellyn (1887–1966)

Hamming, Richard W(esley) (1915–1998)

Hancock, Thomas (1786–1865)

Handley Page, Frederick (1885–1962)

Hanford, William Edward (1908–1996)

Hankel, Hermann (1839–1873)

Hänsch, Theodor (Wolfgang) (1941– )

Hansteen, Christopher (1784–1873)

Happer, William, Jr (1939– )

Harden, Arthur (1865–1940)

Hardin, Garrett (James) (1915–2003)

Hardy, Alister Clavering (1896–1985)

Hardy, Godfrey Harold (1877–1947)

Hargreaves, James (1720–1778)

Harken, Dwight E (1910–1993)

Harlow, Harry (Frederick) (1905–1981)

Haroche, Serge (1944– )

Harrington, Roger F.

Harriot, Thomas (c. 1560–1621)

Harris, Chauncy Dennison (1914–2003)

Harris, Henry (1925–2015)

Harrison, John (1693–1776)

Harrison, Ross G(ranville) (1870–1959)

Hart, Edwin Bret (1874–1953)

Hartline, Haldan Keffer (1903–1983)

Hartwell, Leland H (1939– )

Harvey, E(dmund) Newton (1887–1959)

Harvey, Ethel Browne (1885–1965)

Harvey, William (1578–1657)

Harvey, William Henry (1811–1866)

Hashin, Zvi

Haskell, Norman (Abraham) (1905–1970)

Hassel, Odd (1897–1981)

Hauptman, Herbert A (1917–2011)

Hausdorff, Felix (1868–1942)

Hauser, (Benjamin) Gayelord (1895–1984)

Haüy, René-Just (1743–1822)

Hawking, Stephen William (1942–2018)

Haworth, (Walter) Norman (1883–1950)

Haworth, Adrian Harvey (1766–1833)

Hayashi, Chushiro (1920–2010)

Hayden, Ferdinand V(andiveer) (1829–1887)

Hayem, Georges (1841–1920)

Haynes, Elwood (1857–1925)

Head, Henry (1861–1940)

Heath, Thomas Little (1861–1940)

Heathcoat, John (1783–1861)

Heaviside, Oliver (1850–1925)

Heck, Nicholas H(unter) (1882–1953)

Heck, Richard (Fredrick) (1931–2015)

Hedberg, Hollis Dow (1903–1988)

Heeger, Alan J (1936– )

Heimlich, Henry (Jay) (1920–2016)

Heine, Heinrich Eduard (1812–1881)

Heinrich, Bernd (1940– )

Heisenberg, Werner (Karl) (1901–1976)

Hell, Stefan Walter (1962– )

Helmholtz, Hermann Ludwig Ferdinand von (1821–1894)

Helmont, Jan Baptist van (1579–1644)

Hench, Philip Showalter (1896–1965)

Henderson, Lawrence J(oseph) (1878–1942)

Henderson, Richard (1945– )

Henderson, Thomas (1798–1844)

Henle, Friedrich Gustav Jakob (1809–1885)

Henley, Ernest M(ark) (1924–2017)

Henry, Joseph (1797–1878)

Henry, William (1774–1836)

Heraklides of Pontus (388–315 BC)

Herapath, John (1790–1868)

Herb, Raymond G(eorge) (1908–1996)

Herbig, George Howard (1920–2013)

Herbrand, Jacques (1908–1931)

Hering, Constantine (1800–1880)

Hermite, Charles (1822–1901)

Hero of Alexandria (lived c. AD 60)

Herophilus of Chalcedon (c. 330–c. 260 BC)

Héroult, Paul Louis Toussaint (Héroult, Paul Louis Toussaint)

Herring, (William) Conyers (1914–2009)

Herschbach, Dudley R (1932– )

Herschel, (Frederick) William (1738–1822)

Herschel, Caroline (Lucretia) (1750–1848)

Herschel, John Frederick William (1792–1871)

Hershey, Alfred Day (1908–1997)

Hershko, Avram (1937– )

Hertwig, Wilhelm August Oscar (1849–1922)

Hertz, Gustav (1887–1975)

Hertz, Heinrich Rudolf (1857–1894)

Hertzsprung, Ejnar (1873–1967)

Herzberg, Gerhard (1904–1999)

Herzog, Bertram (1929–2008)

Hess, Germain Henri (1802–1850)

Hess, Harry Hammond (1906–1969)

Hess, Victor Francis (1883–1964)

Hess, Walter R(udolf) (1881–1973)

Hevelius, Johannes (1611–1687)

Hevesy, Georg Karl von (1885–1966)

Hewish, Antony (1924– )

Hewlett, William (Redington) (1913–2001)

Hey, James Stanley (1909–2000)

Heymans, Corneille J(ean) F(rançois) (1892–1968)

Heyrovský, Jaroslav (1890–1967)

Hickmann, Henry Hill (1800–1830)

Hiesey, William M(cKinley) (1903–1998)

Higgins, William (1763–1825)

Higgs, Peter (Ware) (1929– )

Hilbert, David (1862–1943)

Hildegard of Bingen (1098–1179)

Hill, Archibald Vivian (1886–1977)

Hill, Austin Bradford (1897–1991)

Hill, George William (1838–1914)

Hill, Robert (1899–1991)

Hillier, James (1915–2007)

Hinshelwood, Cyril Norman (1897–1967)

Hinton of Bankside, Christopher, Baron Hinton of Bankside (1901–1983)

Hinton, William Augustus (1883–1959)

Hipparchus (c. 190–c. 120 BC)

Hippocrates (c. 460–c. 377 BC)

His, Wilhelm (father) (1831–1904)

His, Wilhelm (son) (1863–1934)

Hitchings, George Herbert (1905–1998)

Hittorf, Johann Wilhelm (1824–1914)

Hoagland, Mahlon Bush (1921–2009)

Hodgkin and Huxley, Alan Lloyd Hodgkin (1914–1998) and Andrew Fielding Huxley (1917–2012) (1917–2012)

Hodgkin, Alan Lloyd (1914–1998)

Hodgkin, Dorothy Mary Crowfoot (1910–1994)

Hodgkin, Thomas (1798–1866)

Hodgkinson, Eaton (1789–1861)

Hoe, Richard March (1812–1886)

Hoff, Ted (1937– )

Hoffman, Albert (1906–2008)

Hoffmann, Jules A(lphonse) (1941– )

Hoffmann, Roald (1937– )

Hofmann, August Wilhelm von (1818–1892)

Hofmeister, Wilhelm Friedrich Benedikt (1824–1877)

Hofstadter, Robert (1915–1990)

Hogben, Lancelot Thomas (1895–1975)

Holland, Clifford (1883–1924)

Hollerith, Herman (1860–1929)

Holley and Nirenberg, Robert William Holley (1922–1993) and Marshall Warren Nirenberg (1927–2010) (1927–2010)

Holley, Alexander Lyman (1832–1882)

Holley, Robert William (1922–1993)

Holmes, Arthur (1890–1965)

Holmes, Donald Fletcher (1910–1980)

Holmes, William Henry (1846–1933)

Holonyak, Jr., Nick

Holtfreter, Johannes (Friedrich Karl) (1901–1992)

Honjo, Tasuku (1942– )

Hooke, Robert (1635–1703)

Hooker, Joseph Dalton (1817–1911)

Hooker, Stanley George (1907–1984)

Hooker, William Jackson (1785–1865)

Hoover, William Henry (1849–1932)

Hopkins, Frederick Gowland (1861–1947)

Hopkinson, John (1849–1898)

Hopper, Grace (1906–1992)

Hornaday, William Temple (1854–1937)

Horner, William George (1786–1837)

Horrocks, Jeremiah (c.1617–1641)

Horsford, Eben Norton (1818–1893)

Horsley, Victor Alexander Haden (1857–1916)

Horvath, Philippe

Horvitz, H(oward) Robert (1947– )

Hosack, David (1769–1835)

Hounsfield, Godfrey Newbold (1919–2004)

House, Royal (Earl) (1814–1895)

Houssay, Bernardo Alberto (1887–1971)

Howe, Elias (1819–1867)

Hoyle, Fred(erick) (1915–2001)

Hubbert, M(arion) King (1903–1989)

Hubble, Edwin (Powell) (1889–1953)

Hubel, David Hunter (1926–2013)

Huber, Robert (1937– )

Hückel, Erich Armand Arthur Joseph (1896–1980)

Hudson, William (1734–1793)

Huggins, Charles Brenton (1901–1997)

Huggins, William (1824–1910)

Hughes, David (1831–1900)

Hughes, Vernon W(illard) (1921–2003)

Hulse, Russell (1950– )

Humason, Milton Lasell (1891–1972)

Humboldt, (Friedrich Wilhelm Heinrich) Alexander (1769–1859)

Hume-Rothery, William (1899–1968)

Hunt, R Timothy (1943– )

Hunt, Thomas Sterry (1826–1892)

Hunter, John (surgeon) (1728–1793)

Hurewicz, Witold (1904–1956)

Hussey, Obed (1792–1860)

Hutton, James (1726–1797)

Huxley, Andrew Fielding (Huxley, Andrew Fielding)

Huxley, Hugh Esmor (1924–2013)

Huxley, Julian Sorell (1887–1975)

Huxley, T(homas) H(enry) (1825–1895)

Huygens, Christiaan (1629–1695)

Hyatt, John Wesley (1837–1920)

Hyman, Libbie Henrietta (1888–1969)

Hypatia (c. 370–415)