In bold, the official abbreviations
- Ha, TD (Ha) Thi Dung Ha
- Haacke, JW Johann Wilhelm Haacke (1855–1912)
- Haage, F (F.Haage) Ferdinand Haage (1859–1930)
- Haage, FA (Haage) Friedrich Adolph Haage (1796–1866)
- Haage, JN (J.N.Haage) Johann Nicolaus Haage (1826–1872)
- Haage, W (W.Haage) Walther Haage (1899–1992)
- Haager, JR (Haager) Jiří R. Haager (1943– )
- Haagner, AK Alwin Karl Haagner (1880–1962)
- Haan, W de Wilhem de Haan (1801–1855)
- Haas, A Alexander Haas
- Haase, E Erich Haase (1859–1894)
- Haase, M Martin Haase
- Haast, JFJ Johann Franz Julius von Haast (1822–1887)
- Habe, T Tadashige Habe (1916–2001)
- Habel, JC Jan C. Habel
- Habeler, H (Habeler) Heinz Habeler (1933-2017)
- Haber, RM (R.M.Haber) Ricardus M. Haber (fl. 2002)
- Haberer, JV (Haberer) Joseph Valentine Haberer (1855–1925)
- Habersetzer, J Jörg Habersetzer
- Hablizl, CL (Hablitz) Carl Ludwig Hablizl (1752–1821)
- Habu, A Akinobu Habu (1920–2008)
- Hachisuka, M Masauji Hachisuka (1903–1953)
- Hachitani, Y (Hachitani) Yukio Hachitani
- Hackel, E (Hack.) Eduard Hackel (1850–1926)
- Hacker, H (Hacker) Hermann Hacker
- Hackman, WLV Walter Leopold Victor Hackman (1916– )
- Hadač, E (Hadač) Emil Hadač (1914–2003)
- Haddad, CFB Célio Fernando Baptista Haddad
- Hadden, D Don Hadden
- Haddon, AC Alfred Cort Haddon(1855–1940)
- Hadjikyriakou, G (Hadjik.) Georgios Hadjikyriakou (1946– )
- Hadsall, AS (Hadsall) Annalee S. Hadsall (fl. 2015)
- Hadwen, S (Hadwen) Seymour Hadwen (1877–1947)
- Hadži, J Jovan Hadži (1884–1972)
- Haeckel, E (Haeckel) Ernst Haeckel (1834–1919)
- Haenke, T (Haenke) Thaddäus Haenke (1761–1817)
- Haensch, R Richard Haensch
- Haenseler, F Felix Haenseler (1766–1841)
- Hafellner, J (Hafellner) Joseph Hafellner (1951– )
- Hagedorn, JM Julius Max Hagedorn (1852–1914)
- Hagemann, W (W.Hagemann) Wolfgang Hagemann (1929– )
- Hagen, HA Hermann August Hagen (1817–1893)
- Hagen, IS (I.Hagen) Ingebrigt Severin Hagen (1852–1917)
- Hagen, KG (K.G.Hagen) Karl Gottfried Hagen (1749–1829)
- Hagen, ten W (ten Hagen) Wolfgang ten Hagen
- Haglund, GE (G.E.Haglund) Gustaf Emanuel Haglund (1900–1955)
- Hagmann, G Gottfried Hagmann
- Hagn, H Herbert Hagn (1927–2003)
- Hágsater, E (Hágsater) Eric Hágsater (1945– )
- Hah, YC Yung Chil Hah
- Hahn, CW Carl Wilhelm Hahn (1786–1836)
- Hahn, G (G.Hahn) Gotthold Hahn
- Hahn, G Gerhard Hahn
- Hahn, WL Walter Louis Hahn (1879–1911)
- Haider, AA A.A. Haider
- Haiduk, E (Haiduk) E. Haiduk
- Haile, NS Neville Seymour Haile (1928–2004)
- Haime, J Jules Haime (1824–1856)
- Haines, A (A.Haines) Arthur Haines (fl. 2001)
- Haines, HH (Haines) Henry Haselfoot Haines (1867–1945)
- Haines, RW (R.W.Haines) Richard Wheeler Haines (1906–1982)
- Haines, WP William P. Haines
- Hairston Sr., NG Nelson George Hairston Sr. (1917–2008)
- Haitlinger, R (Haitlinger) Ryszard Haitlinger
- Hajiqanbar, H Hamidreza Hajiqanbar
- Häkkinen, M (Häkkinen) Markku Häkkinen (1946–2015)
- Hakulinen, RA (Hakul.) Rainer Alarik Hakulinen (1918– )
- Halácsy, Ev (Halácsy) Eugen von Halácsy (1842–1913)
- Halbinger, F (Halb.) Federico Halbinger (1925–2007)
- Halbritter, H (Halbritt.) Heidemarie Halbritter (1956– )
- Halda, JP (J.P.Halda) Josef Pepa Halda (1969– )
- Halda, JJ (Halda) Josef Jakob Halda (1943– )
- Haldeman, SS Samuel Stehman Haldeman (1812–1880)
- Hale, BW (B.W.Hale) Beatrice Wilde Hale (fl. 1998)
- Hale, ME (Hale) Mason Ellsworth Hale (1928–1990)
- Halford, DA (Halford) David A. Halford (fl. 1992)
- Halıcı, MG (Halıcı) Mehmet Gökhan Halıcı (fl. 2006)
- Haliday, AH Alexander Henry Haliday (1806–1870)
- Hall, A (A. Hall) Arthur Hall
- Hall, CC (C.C.Hall) Carlotta Case Hall (1880–1949)
- Hall, DW (D.W.Hall) David Walter Hall (1940– )
- Hall, EC (E.C.Hall) Edwin Cuthbert Hall (1874–1953)
- Hall, HC (H.C.Hall) Herman Christiaan van Hall (1801–1874)
- Hall, HM (H.M.Hall) Harvey Monroe Hall (1874–1932)
- Hall, IR Ian R. Hall
- Hall, IV (I.V.Hall) Ivan Victor Hall (1924– )
- Hall, J James Hall Jr (1811–1898)
- Hall, JB (J.B.Hall) John Bartholomew Hall (1932–1984
- Hall, JC Jack Clayton Hall
- Hall, JPW (Hall) Jason Piers Wilton Hall
- Hall, PM (P.M.Hall) Patrick Martin Hall (1894–1941)
- Hall, R Robert Hall (1867–1949)
- Hall, V Val Hall
- Hallé, N (N.Hallé) Nicolas Hallé (1927– )
- Haller, Av (Haller f.) Albrecht von Haller (son) (1758–1823)
- Haller, Av (Haller) Albrecht von Haller (father) (1708–1777)
- Haller, B Béla Haller
- Haller, G Gottfried Haller
- Haller, GE (G.Haller) Gottlieb Emmanuel von Haller (1735–1786)
- Hallermann, J (Hallermann) Jakob Hallermann
- Halliday, B Bruce Halliday
- Halliday, P (P.Halliday) Patricia Halliday (1930– )
- Hallier, EH (Hallier) Ernst Hans Hallier (1831–1904)
- Hallier, HG (Hallier f.) Hans Gottfried Hallier (1868–1932)
- Halling, L Luke Halling
- Halling, RE (Halling) Roy Edward Halling (1950– )
- Hallmen, M Martin Hallmen
- Hallowell, E Edward Hallowell (1808–1860)
- Halloy, SRP (Halloy) Stephan R.P. Halloy (1953– )
- Halonen, P (Halonen) Pekka Halonen
- Halse, SA Stuart A. Halse
- Halsey, A (Halsey) Abraham Halsey (1790–1857)
- Haltenorth, T Theodor Haltenorth (1910–1981)
- Hama, E (E.Hama) Eisuke Hama (fl. 1987)
- Hamada, N Neusa Hamada
- Hamann, HHF Helmut Heinrich Franz Hamann (1902–1980)
- Hamann, O Otto Hamann
- Hamel, G (G.Hamel) Günther Hamel
- Hamer, F (Hamer) Fritz Hamer (1912–2004)
- Hamer, ML Michelle L. Hamer
- Hämet-Ahti, L Leena Hämet-Ahti
- Hamilton, KGA K.G.A. Hamilton
- Hamilton, SW Steven W. Hamilton
- Hamilton, W (Ham.) William Hamilton (1783–1856)
- Hamilton Smith, C Charles Hamilton Smith (1776–1859)
- Haminuddin Haminuddin
- Hamlin, BG (Hamlin) Bruce Gordon Hamlin (1929–1976)
- Hammel, BE (Hammel) Barry Hammel (1946– )
- Hammer, BW Bernard W. Hammer
- Hammer, FL Frédéric-Louis Hammer ( -1837)
- Hammer, K (K.Hammer) Karl Hammer (1944– )
- Hammer, M Marie Hammer
- Hammer, S (S.Hammer) Samuel Hammer
- Hammer, SA (S.A.Hammer) Steven Allen Hammer (1951– )
- Hammer, WR William R. Hammer
- Hammond, PC (Hammond) Paul C. Hammond
- Hammond, PM Peter Michael Hammond (1941–2021)
- Hampe, C Clemens Hampe (1808–1884)
- Hampe, GEL Georg Ernst Ludwig Hampe (1795–1880)
- Hampson, GF George Francis Hampson (1860–1936)
- Hamzaoğlu, E (Hamzaoğlu) Ergin Hamzaoğlu (1963– )
- Han, CD Chang-do Han
- Han, HL (H.L. Han) Hui-Lin Han
- Han, HX (H.X.Han) Hong-Xiang Han
- Han, HY (H.Y.Han) Ho-Yeon Han
- Han, KL Kin-Lan Han
- Han, X Xu Han
- Hanada, S Satoshi Hanada
- Hanafusa, H (H.Hanafusa) Hiroto Hanafusa
- Hanai, T Tetsuro Hanai
- Hanbury, D (D.Hanb.) Daniel Hanbury (1825–1875)
- Hanbury, FJ (F.Hanb.) Frederick Janson Hanbury (1851–1938)
- Hance, HF (Hance) Henry Fletcher Hance (1827–1886)
- Hancock, A Albany Hancock (1806–1873)
- Hand, R (Hand) Ralf Hand (1964– )
- Hand, SJ (S.J. Hand) Suzzane Joan Hand
- Handel-Mazzetti, H (Hand.-Mazz.) Heinrich von Handel-Mazzetti (1882–1940)
- Handfield, D (D. Handfield) Daniel Handfield
- Handfield, L (L. Handfield) Louis Handfield
- Handl, C Claudia Handl
- Handley, CO Charles Overton Handley, Jr. (1924–200)
- Handlirsch, A Anton Handlirsch (1865—1935)
- Handlos, WL Wayne L. Handlos
- Handro, O Osvaldo Handro (1908–1986)
- Handschin, E Eduard Handschin (1894–1962)
- Hanken, J James Hanken
- Hanley, GA Guy A. Hanley
- Hanley, SCT Sylvanus Charles Thorp Hanley (1819–1899)
- Hanna, GD G. Dallas Hanna (1887–1970)
- Hannemann, HJ (Hannemann) Hans-Joachim Hannemann
- Hanner, R Robert Hanner
- Hannibal, LS (L.S.Hannibal) Lester Stuart Hannibal (1906– )
- Hansen, A (A.Hansen) Alfred Hansen (1925–2008)
- Hansen, BF (B.F.Hansen) Bruce Frederick Hansen (1944– )
- Hansen, ES (E.S.Hansen) Eric Steen Hansen (1943– )
- Hansen, GA Gerhard Armauer Hansen (1841–1912)
- Hansen, HJ Hans Jacob Hansen (1855–1936)
- Hansen, HV (H.V.Hansen) Hans Vilhelm Hansen (1951– )
- Hansen, LA Louis A. Hansen
- Hansen, M Michael Hansen (1956–2000)
- Hansen, NE (N.E.Hansen) Niels Ebbesen Hansen (1866–1950)
- Hansford, CG (Hansf.) Clifford Gerold Hansford (1900–1966)
- Hansknecht, KA Kerry A. Hansknecht
- Hansman, RH Robert H. Hansman
- Hanson, PE Paul E. Hanson
- Hanssens, M Mark Hanssens
- Hansson, HG Hans G. Hansson (1945–2011)
- Hanstein, JLER (Hanst.) Johannes Ludwig Emil Robert von Hanstein (1822–1880)
- Hao, HL (H.L. Hao) Hui-Ling Hao
- Hao, Y Yan Hao
- Hao, KS (K.S.Hao) Kin Shen Hao (1904–1965)
- Hao, SL (S.L.Hao) Shu-Lian Hao
- Hao, Y Yichun Hao
- Hara, H (H.Hara) Hiroshi Hara (1911–1986)
- Hara, K (Hara) Kanesuke Hara (1885–1962)
- Harada, H (H.Harada) Hiroshi Harada
- Haraldson, K Kerstin Haraldson
- Harant, R Radovan Harant
- Harbach, RE Ralph E. Harbach
- Harbison, GR G. Richard Harbison
- Harbison, TG (Harb.) Thomas Grant Harbison (1862–1936)
- Harcourt, EWV Edward William Vernon Harcourt (1825–1891)
- Hardenberg, JDF Johann Dietrich Franz Hardenberg
- Hardham, CB [Clare B. Hardham]]
- Hardin, JW (Hardin) James Walker Hardin (1929– )
- Harding, CD Charmaigne D. Harding
- Harding, JP John Philip Harding
- Harding, KA Keith A. Harding
- Hardjasasmita, HS H.S. Hardjasasmita
- Hardwick, DF (Hardwick) David F. Hardwick
- Hardwicke, T Thomas Hardwicke (1755–1835)
- Hardy, AJ (A.J.Hardy) Apollon Joseph Hardy (1846–1929)
- Hardy, DE Dilbert Elmo Hardy (1914–2002)
- Hardy, GH George Hudleston Hurlstone Hardy (1882–1966)
- Hardy, GS Graham S. Hardy
- Hardy, J (Hardy) John Hardy (1817–1884)
- Hardy, JD Jerry David Hardy, Jr.
- Hardy, LM Laurence M. Hardy
- Hardy, M Martin Hardy
- Hardy, N; Hardy, NB Nate B. Hardy
- Hare, L Laura Hare
- Hare, SR S.R. Hare
- Harger, O Oscar Harger (1843–1887)
- Hargitt, E Edward Hargitt (1835–1895)
- Hariharan, GN (Harih.) G.N. Hariharan
- Haring, E Elisabeth Haring
- Harington, HH Herbert Hasting Harington (1868–1916)
- Hariot, PA (Har.) Paul Auguste Hariot (1854–1917)
- Harkness, HW (Harkn.) Harvey Willson Harkness (1821–1901)
- Harlan, JR (J.R.Harlan) Jack Rodney Harlan (1917–1999)
- Harlan, R Richard Harlan (1796–1843)
- Harley, EH Eric H. Harley
- Harley, MM (M.M.Harley) Madeline Margaret Harley (1945–)
- Harling, GW (Harling) Gunnar Wilhelm Harling (1920– )
- Harloff, J Joachim Harloff
- Harlow, PS Peter S. Harlow
- Harlton, BH Bruce H. Harlton
- Harmaja, HT (Harmaja) Harri Tapani Harmaja (1944– )
- Harmand, JHAJ (Harm.) Julien Herbert Auguste Jules Harmand (1844–1915)
- Harmelin-Vivien, ML Mireille L. Harmelin-Vivien
- Harms, D (D. Harms) Danilo Harms
- Harms, H (Harms) Hermann Harms (1870–1942)
- Harmston, FC Fred Carl Harmston (1911–1995)
- Harold, E Edgar von Harold (1830–1886)
- Harp, CE Charles E. Harp
- Harper, F Francis Harper
- Harper, RM (R.M.Harper) Roland McMillan Harper (1878–1966)
- Harpke, D (Harpke) Dörte Harpke (fl. 2016)
- Harr, J (Harr) Jost Harr
- Harrap, SCB Simon C.B. Harrap
- Harriman, J (J.Harriman) John Harriman (1760–1831)
- Harring, HK Harry K. Harring (1871–1928)
- Harrington, AJ (A.J.Harr.) Alan John Harrington (1942– )
- Harris, AC Anthony C. Harris
- Harris, DJ (D.J.Harris) David J. Harris (fl. 1999)
- Harris, EM Elizabeth Marlene Harris (1959– )
- Harris, GD Gilbert Dennison Harris (1864–1952)
- Harris, JBC J. Berton C. Harris
- Harris, M Moses Harris (1730 – c. 1788)
- Harris, RC (R.C. Harris) Richard Clinton Harris (1939–2021)
- Harris, RW Reginald W. Harris
- Harris, SK (S.K.Harris) Stuart Kimball Harris (1906–1969)
- Harris, TW Thaddeus William Harris (1795–1856)
- Harrison, BA Bruce A. Harrison
- Harrison, CJO Colin James Oliver Harrison
- Harrison, FC Francis C. Harrison (1871–1952)
- Harrison, JR Julian R. Harrison (1934–2009)
- Harrison, K Keith Harrison
- Harrison, RA Roy A. Harrison (1918–2006)
- Harrison, T Terry Harrison
- Harrison-Nelson, E Elizabeth Harrison-Nelson
- Harrod, JC Jonathan C. Harrod
- Harrow, RL (R.L.Harrow) Robert Lewis Harrow (1867–1954)
- Harry, RR Robert Rees Harry (1925– )
- Hart, CW Charles Willard Hart
- Hart, H 't ( 't Hart) Hendrik 't Hart (1944–2000)
- Hart, JFL Josephine F.L. Hart
- Hart, M 't Maarten 't Hart (1944– )
- Hartert, E Ernst Hartert (1859–1933)
- Hartig, FMHAFJ Friedrich Heinrich Anton Franz-Joseph Hartig (1900–1980)
- Hartig, T (Hartig) Theodor Hartig (1805–1880)
- Harting, JE James Edmund Harting (1841–1928)
- Hartini, S Sri Hartini
- Hartlaub, G Gustav Hartlaub (1814–1900)
- Hartley, F Flora Hartley
- Hartley, TG (T.G.Hartley) Thomas Gordon Hartley (1931– )
- Hartman, C (C.Hartm.) Carl Hartman (1824–1884)
- Hartman, CJ Carl Johann Hartman (1790–1849)
- Hartman, O Olga Hartman (1900–1974)
- Hartman, RL (R.L.Hartm.) Ronald Lee Hartman (1945– )
- Hartman, WD Willard Daniel Hartman (1921–2013)
- Hartmann, C (C. Hartmann) Claudia Hartmann
- Hartmann, G Gerd Hartmann (1938–2010)
- Hartmann, HEK (H.E.K.Hartmann) Heidrun Elsbeth Klara Hartmann (1942–2016)
- Hartmann, JDW Johann Daniel Wilhelm Hartmann (1793–1862)
- Hartmann, PE Peter Emmanuel Hartmann
- Hartog, C Cornelis den Hartog (1931– )
- Hartvig, P (Hartvig) Per Hartvig (1941– )
- Hartweg, KT (Hartw.) Karl Theodor Hartweg (1812–1871)
- Hartweg, NE Norman Edouard Hartweg (1904–1964)
- Hartwich, C (Hartwich) Carl Hartwich
- Hartwig, AKJ August Karl Julius Hartwig (1823–1913)
- Hartwig, KG (K.G.Hartwig) Karl Gustav Hartwig (1871–1960)
- Hartwig, W Waldemar Hartwig
- Hartwiss, N (Hartwiss) Nicolai Anders von Hartwiss (1791–1860)
- Haruta, T (Haruta) Toshiro Haruta
- Harvey, DJ (Harvey) Donald J.Harvey
- Harvey, MB Michael Brown Harvey
- Harvey, MS (M.S. Harvey) Mark Stephen Harvey
- Harvey, WH (Harv.) William Henry Harvey (1811–1866)
- Harvill, AM (Harvill) Alton McCaleb Harvill, Jr. (1916–2008)
- Harwood, DM David M. Harwood
- Harwood, RK Robert Kevyn Harwood
- Haryoko, T Tri Haryoko
- Harz, CO (Harz) Carl Otto Harz (1842–1906)
- Hasan, M Manzoor Hasan
- Hasegawa, J (J.Haseg.) Jiro Hasegawa (1947– )
- Hasegawa, N (N.Haseg.) Norito Hasegawa (1940– )
- Hasegawa, T (T. Hasegawa) Takashi Hasegawa
- Haseman, JD John D. Haseman
- Hasenkamp, R Ruth Hasenkamp
- Hasenpusch, JW Jack W. Hasenpusch
- Hashimoto, G (Hashim.) Goro Hashimoto (1913– )
- Hashimoto, S (Hashimoto) Satoshi Hashimoto
- Hashimoto, Y Yoshiaki Hashimoto
- Haskins, CW Cyril Walter Haskins
- Hasle, GR Grethe R. Hasle
- Hass, CA Carla Ann Hass
- Hass, H. (Hass) Hagen Hass (1947–)
- Hass, WH Wilbert Henry Hass (1906–)
- Hassall, AH (Hassall) Arthur Hill Hassall (1817–1894)
- Hassanin, A Alexandre Hassanin
- Hasse, HE Hermann Edward Hasse (1836–1915)
- Hässel de Menéndez, GG (Hässel) Gabriela Gustava Hässel de Menéndez (1927–2009)
- Hasselbring, H (Hasselbr.) Heinrich Hasselbring (1875–1932)
- Hasselquist, F (Hasselq.) Fredric Hasselquist (1722–1752)
- Hasselrot, TE (Hasselrot) Torsten Edvard Hasselrot (1903–1970)
- Hasskarl, JC (Hassk.) Justus Carl Hasskarl
- Hassler, E (Hassl.) Émile Hassler (1864–1937)
- Hassler, WG William Grey Hassler
- Haswell, WA William Aitcheson Haswell (1854–1925)
- Haszprunar, G Gerhard Haszprunar (1957– )
- Hatanaka, K Kiyotaka Hatanaka
- Hatano, K Kazunori Hatano
- Hatch, ED (Hatch) Edwin Daniel Hatch (1918– )
- Hatch, MH Melville Harrison Hatch (1898–1988)
- Hatcher, JB John Bell Hatcher (1861–1904)
- Hatschbach, GG (Hatschb.) Gerdt Guenther Hatschbach (1923– )
- Hatschek, B Berthold Hatschek (1854–1941)
- Hättenschwiler, P (Hättenschwiler) Peter Hättenschwiler
- Hattori, S (S.Hatt.) Sinske Hattori (1915–1992)
- Hatusima, H (Hatus.) Sumihiko Hatusima (1906– )
- Hauck, M (M.Hauck) Markus Hauck
- Hauenstein, A (Hauenstein) Armin Hauenstein
- Haufler, CH (Haufler) Christopher H. Haufler (1950– )
- Haug, E Émile Haug (1861–1927)
- Haugan, R (Haugan) Reidar Haugan
- Haughton, SH Sidney Henry Haughton (1888–1982)
- Hauman, LL Lucien Leon Hauman (1880–1965)
- Haupt, H H. Haupt
- Haupt, J Joachim Haupt
- Hausdorf, B Bernhard Hausdorf
- Häuser, CL (C.L. Häuser) Christoph L. Häuser
- Hauser, E (E. Hauser) Erwin Hauser
- Hauser, E Elke Hauser
- Hauser, M Martin Hauser
- Hausmann, A (Hausmann) Axel Hausmann
- Hausmann, F (Hausm.) Franz von Hausmann (1810–1878)
- Haussknecht, HC (Hausskn.) Heinrich Carl Haussknecht (1838–1903)
- Hautzinger, LKKH (Hautz.) Leo.K.K.H. Hautzinger (1920– )
- Háva, J (Háva) Jiri Háva
- Havaas, JJ (Hav.) Johan Jonson Havaas (1864–1956)
- Havelka, J Jan Havelka (coleopterist) (1911–1977)
- Havelka, J Jan Havelka (hemipterist)
- Havelka, P Peter Havelka (1944–)
- Haviland, GD (Havil.) George Darby Haviland (1857–1901)
- Haviland, MD Maud Doria Haviland (1889-1941)
- Havird, JC Justin C. Havird
- Havlicek, V Vladimir Havlicek
- Haw, SG (S.G.Haw) Stephen George Haw (1951– )
- Hawker, RM Richard Mcdonnell Hawker (1865–1930)
- Hawkes, AD (A.D.Hawkes) Alex Drum Hawkes (1927–1977)
- Hawkes, JGH John Gregory Hawkes (1915–2007)
- Hawkeswood, TJ Trevor J. Hawkeswood
- Hawkins, HL Herbert L. Hawkins
- Hawkins, JA (Hawkins) Julie Ann Hawkins (1967– )
- Hawkins, MTR Melissa T.R. Hawkins
- Hawkins, RL Rachel L. Hawkins
- Hawks, DC (Hawks) David C. Hawks
- Hawksworth, DL (D.Hawsksw.) David Leslie Hawksworth (1946– )
- Hawksworth, FG (Hawksw.) Frank Goode Hawksworth (1926–1993)
- Hawle, I Ignaz Hawle (1783–1886)
- Haworth, AH (Haw.) Adrian Hardy Haworth (1767–1843)
- Haxaire, J (Haxaire) Jean Haxaire
- Hay, A (A.Hay) Alistair Hay (1955– )
- Hay, JM Jennifer M. Hay
- Hay, OP Oliver Perry Hay (1846–1930)
- Hayakama, M Masayuki Hayakama
- Hayashi, H (H. Hayashi) Hisakazu Hayashi
- Hayashi, M (M.Hayashi) Masahiko Hayashi (fl. 2009)
- Hayashi, T Terutake Hayashi
- Hayashi, T Toshio Hayashi
- Hayashi, Y Y. Hayashi
- Hayata, B Bunzo Hayata (1874–1934)
- Hayden, JE (J.E. Hayden) James E. Hayden
- Hayden, WJ (W.J.Hayden) Walter John Hayden (1951– )
- Haye, PA Pilar A. Haye
- Hayek, Av (Hayek) August von Hayek (1871–1928)
- Hayek, CMFv Christine Maria Felicitas von Hayek
- Hayırlıoğlu Ayaz, S (Hay.-Ayaz) Sema Hayırlıoğlu Ayaz (fl. 1997)
- Hayman, RW Robert William Hayman
- Hayne, FG Friedrich Gottlob Hayne (1763–1832)
- Haynes, A Alison Haynes
- Haynes, CC (Haynes) Caroline Coventry Haynes
- Haynes, JL (J.L.Haynes) Jody L. Haynes
- Haynes, PG (P.G. Haynes) Patrick G. Haynes
- Haynes, RR (R.R.Haynes) Robert Ralph Haynes (1945– )
- Häyrén, EF (Häyrén) Ernst Fredrik Häyrén (1878–1957)
- Hays, JF (Hays) John F. Hays
- Hayward, AC Andrew C. Hayward
- Hayward, BW Bruce W. Hayward
- Hayward, KJ Kenneth J. Hayward (1891–1972)
- Hayward, P Peter Hayward
- Hazel, JE Joseph E. Hazel
- Hazen, TE (Hazen) Tracy Elliot Hazen (1874–1943)
- Hazir, C (Hazir) Canan Hazir
- Hazslin, FAH (Hazsl.) Friedrich August Hazlinszky von Hazslin (1818–1896)
- He, H (H.He) Hai He (fl. 1996)
- He, JH (J.H.He) Jun-Hua He
- He, JQ (J.Q.He) Jia Qing He
- He, PC (P.C.He) Pu Chao He
- He, S (S.He) Si He (1959– )
- He, XJ (X.J.He) Xing-Jin He (1962– )
- He, XR Xiao-rui He
- He, XS (X.S.He) Xin-Sheng He
- He, XY (X.Y.He) Xing-Yuan He
- Head, JJ Jason James Head
- Heads, SW Sam W. Heads (1983– )
- Heald, FDF (Heald) Frederick De Forest Heald (1872–1954)
- Healy, RA (Healy) Rosanne A. Healy
- Heaney, LR Lawrence R. Heaney
- Heard, RW Richard W. Heard
- Heath, A Alan Heath
- Heath, ACG Allen C.G. Heath
- Heath, H Harold Heath (1868–1951)
- Heath, J John Heath
- Heatwole, HF Harold Franklin Heatwole
- Hebard, M Morgan Hebard
- Hebauer, F Franz Hebauer
- Hebding, R (Hebding) René Hebding
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- Hulke, JW John Whitaker Hulke (1830–1895)
- Hull, J (Hull) John Hull (1761–1843)
- Hull, JE John Edward Hull
- Hulselmans, J Jan Hulselmans
- Hulst, GD George Duryea Hulst (1846–1900)
- Hulstaert, G Gustaaf Hulstaert (1900–1990)
- Hulten, E Eric Hultén (1884–1981)
- Hulting, J Johan Hulting (1842–1929)
- Humbert, JH Jean-Henri Humbert (1887–1967)
- Humboldt, A (Humb.) Alexander von Humboldt (1769–1859)
- Hume, AO Allan Octavian Hume (1829–1912)
- Hume, EP (E.P.Hume) Edward P. Hume
- Hume, HHH (H.H.Hume) Hardrada Harold Hume (1875–1965)
- Hummel, AD Arvid David Hummel (177–1836)
- Hummelinck, PW (Hummelinck) Pieter Wagenaar Hummelinck (1907– )
- Hummon, WD William D. Hummon
- Humphrey, EC Elaine C. Humphrey
- Humphrey, FL Frances L. Humphrey
- Humphrey, G George Humphrey (1739–1826)
- Humphrey, PS Philip Strong Humphrey {1926–2009)
- Humphreys, WF William F. Humphreys
- Humphries, CJ Christopher John Humphries (1947– )
- Hundsdörfer, AK Anna K. Hundsdörfer
- Huneck, S (Huneck) Siegfried Huneck (1928– )
- Hünefeld, F (Hünefeld) Frank Hünefeld
- Hungerford, HB Herbert Barker Hungerford (1885–1963)
- Hunt, AP Adrian Paul Hunt (fl. 1995)
- Hunt, DG (D.G.Hunt) David G. Hunt (fl. 1994)
- Hunt, DJ David J. Hunt
- Hunt, DR (D.R.Hunt) David Richard Hunt (1938– )
- Hunt, GE (Hunt) George Edward Hunt (1841–1873)
- Hunt, GS Glenn S. Hunt
- Hunt, JW J. Wesley Hunt
- Hunt, LE Lawrence E. Hunt
- Hunt, PF (P.F.Hunt) Peter Francis Hunt (1936– )
- Hunt, RH Richard Hewish Hunt (1939–2021)
- Hunt, TE (T.E.Hunt) Trevor Edgar Hunt (1913–1970)
- Hunter, IL (I.L.Hunter) Ingrid L. Hunter
- Hunter, JT John T. Hunter
- Hunter, PE Preston E. Hunter
- Hunter, W (W.Hunter) William Hunter (1755–1812)
- Hunter, WD Walter David Hunter (1875–1925)
- Huntley, JW Jerry W. Huntley
- Huntoon, FM Frank M. Huntoon
- Hunziker, AT (Hunz.) Armando Theodoro Hunziker (1919–2001)
- Hunziker, JH (J.H.Hunz.) Juan Héctor Hunziker (1925–2003)
- Hupé, P Pierre Hupé (1907–2003)
- Hupp, JW Jerry W. Hupp
- Hur, JS Jae-Seoun Hur
- Hurley, DE Desmond Eugene Hurley (1928– )
- Hurley, RL Richard L. Hurley (1934–2008)
- Hürlimann, H (Hürl.) Hans Hürlimann (1921– )
- Hurter, E (Hurter) E. Hurter (1931– )
- Husband, RW Robert W. Husband
- Huseynov, EF Elchin Fizuli oglu Huseynov (1973–2021)
- Husnot, PT (Husn.) Pierre Tranquille Husnot (1840–1929)
- Hussain, SM S. M. Hussain
- Hussakof, L Louis Hussakof (1881–1965)
- Hustache, A Alphonse Hustache (1872–1949)
- Hustad, VP (Hustad) Vincent Patrick Hustad
- Hutchinson, J (Hutch.) John Hutchinson (1884–1972)
- Hutchinson, JB (J.B.Hutch.) Joseph Burtt Hutchinson (1902–1988)
- Hutchinson, MN Mark Norman Hutchinson
- Hutchinson, RO Robert Owen Hutchinson
- Hutchison, IW (I.W.Hutchison) Isobel Wylie Hutchison (1889–1982)
- Hutchison, PC (Hutchison) Paul Clifford Hutchison (1924– )
- Huter, R Rupert Huter (1834–1919)
- Huth, E (Huth) Ernst Huth (1845–1897)
- Hüther, W Walter Hüther
- Hutin, A Arnaud Hutin
- Hutson, RA Roger A. Hutson
- Hutterer, R Rainer Hutterer
- Hutton, FW Frederick Wollaston Hutton (1836–1905)
- Huttunen, SM (Huttunen) Sanna Marjukka Huttunen (1973– )
- Huxley, TH Thomas Henry Huxley (1825–1895)
- Huys, R (Huys) Rony Huys
- Hwang, CL (C.L. Hwang) Chi-Ling Hwang
- Hwang, JM (J.M.Hwang) Jeong Mi Hwang
- Hwang, SM (S.M.Hwang) Shu Mei Hwang (1933– )
- Hwass, CH Christian Hee Hwass (1731–1803)
- Hy, FC (Hy) Félix Charles Hy (1853–1918)
- Hyatt, A Alpheus Hyatt (1838–1902)
- Hyde, KD (K.D.Hyde) Kevin David Hyde
- Hyland, BPM (B.Hyland) Bernard Patrick Matthew Hyland (1937– )
- Hylander, N (Hyl.) Nils Hylander (1904–1970)
- Hylmö, B (B.Hylmö) Bertil Hylmö (1915–2001)
- Hylton Scott, MI Maria Isabel Hylton Scott
- Hyman, LH Libbie Henrietta Hyman (1888–1969)
- Hyslop, JA James Augustus Hyslop (1884–1953)
- Hyvärinen, H (H.Hyvärinen) Heini Hyvärinen
- Hyvärinen, J (J. Hyvärinen) Jari Hyvärinen
- Hyvönen, H (Hyvönen) Jaakko Hyvönen (1959– )
- Hywel-Jones, NL (Hywel-Jones) Nigel Leslie Hywel-Jones
