A
- Abe – Tokiharu Abe (1911–1996)
- Abeille de Perrin, Ab. – Elzéar Abeille de Perrin (1843–1910)
- Able – Kenneth W. Able (born 1945)
- Abbott, C.C.Abbott – Charles Conrad Abbott (1843–1919)
- C.Abbott – Charles Abbot (1761–1817)
- J.Abbott – John Abbot (1751–1841)
- W.Abbott, Abbott – William Louis Abbott (1860–1936)
- Acerbi – Giuseppe Acerbi (1773–1846)
- Acero – Arturo Acero Pizarro (born 1954)
- Adams, Ad. – Charles Baker Adams (1814–1853)
- A.Adams – Arthur Adams (1820–1878)
- A.L.Adams – Andrew Leith Adams (1827–1882)
- D.B.Adams – Daniel B. Adams (fl.1979)
- E.Adams – Edward Adams (1824–1856)
- H.Adams – Henry Adams (1813–1877)
- Agassiz, Ag., L.Ag., Agass. – Louis Agassiz (1807–1873)
- A.Agassiz, A.Ag. – Alexander Emanuel Agassiz (1835–1910)
- Agenjo – Ramon Agenjo Cecilia (1908–1984)
- Aguilera – Orangel Antonio Aguilera Socorro
- D.R.de Aguilera – Dione Rodrigues de Aguilera
- Ahl, E.Ahl – Ernst Ahl (1898–1943)
- J.N.Ahl, Ahl – Jonas Nicolaus Ahl
- Ahlquist – Jon Edward Ahlquist (fl. late 20th century)
- Ahlstrom – Elbert Halvor Ahlstrom (1910–1979)
- Ahnelt – Harald Ahnelt
- Aizawa – Masahiro Aizawa
- Akama – Alberto Akama
- Akihito – Emperor Akihito of Japan (born 1933)
- Albert – James S. Albert
- Albertis – Luigi Maria d'Albertis (1841–1901)
- Alcock – Alfred William Alcock (1859–1933)
- Aldrovandi, Aldr. – Ulisse Aldrovandi (1522–1605)
- Alexander, B.Alexander – Boyd Alexander (1873–1910)
- A.Alexander – Annie Montague Alexander (1867–1950)
- C.Alexander, Alexander – Charles Paul Alexander (1889–1981)
- H.Alexander – Horace Alexander (1889–1989)
- W.Alexander – Wilfred Backhouse Alexander (1885–1965)
- Alencar – José Eduardo de Alencar Moreira (born 1953)
- Alfaro – Anastasio Alfaro (1865–1951)
- Alifanov – Vladimir R. Alifanov
- Allain – Ronan Allain (born 1974)
- Allen, J.A.Allen – Joel Asaph Allen (1838–1921)
- A.Allen – Arthur Augustus Allen (1885–1964)
- G.M.Allen – Glover Morrill Allen (1879–1942)
- G.R.Allen – Gerald R. Allen (born 1942)
- H.Allen – Harrison Allen (1841–1897)
- J.A.Allen – John A. Allen
- Allioni – Carlo Allioni (1728–1804)
- Allman, Allm. – George James Allman (1812–1898)
- Almeida-Toledo – Lurdes Foresti de Almeida Toledo
- Alströmer – Clas Alströmer (1736–1794), a pupil of Linnaeus
- Amadon – Dean Amadon (1912–2003)
- Ambrosio – Alfredo Ambrosio
- Ameghino – Florentino Ameghino (1854–1911)
- Amyot – Charles Jean-Baptiste Amyot (1799–1866)
- Ancey – César Marie Félix Ancey (1860–1906)
- K.Andersen – Knud Andersen
- Anderson, J.Anderson – John Anderson (1833–1900)
- R.Anderson – Rudolph Martin Anderson (1876–1961)
- S.Anderson – Steven Clement Anderson (born 1936)
- W.Anderson – William Anderson (1750–1778)
- André – Jacques Ernest Edmond André (1844–1891)
- Andriyashev, Andriashev, Andrijaschew – Anatoly Petrovich Andriashev (1910–2009)
- Angas – George French Angas (1822–1886)
- Annandale – Nelson Annandale (1876–1924)
- Anthony – Harold Elmer Anthony (1890–1970)
- Antunes – Miguel Telles Antunes (born 1937)
- Apesteguía – Sebastián Apesteguía
- Appellöf – Adolf Appellöf (1857–1921)
- Archbold – Richard Archbold (1907–1976)
- Archer – William Archer (1830?–1897)
- M.Archer – Michael Archer (born 1945)
- Arcucci – Andrea B. Arcucci
- Arrow – Gilbert John Arrow (1873–1948)
- Artedi, Arctaedius, Art. – Peter Artedi (1705–1735)
- Asano – Nagao Asano
- Ashmead – William Harris Ashmead (1855–1908)
- Asso – Ignacio Jordán Claudio de Asso y del Rio (1742–1814)
- Atkinson – William Stephen Atkinson (1820–1876)
- Aubé, Aub. – Charles Aubé (1802–1869)
- Audebert, Audeb. – Jean-Baptiste Audebert (1759–1800)
- Audubon, Audub. – John James Audubon (1785–1851)
- Aurivillius, P.Aurivillius, Auriv. – Per Olof Christopher Aurivillius (1853–1928)
- C.Aurivillius – Carl Wilhelm Samuel Aurivillius (1854–1899)
- S.Aurivillius – Sven Magnus Aurivillius (1892–1928)
- Ausserer, Auss. – Anton Ausserer (1907–1976)
- Ayling – Tony Ayling (born 1947)
- Ayres, W.O.Ayres – William Orville Ayres (1805–1887)
- J.M.Ayres – José Márcio Ayres (1954–2003)
- Azara, Az. – Félix de Azara (1746–1821)
- Azuma – Yoichi Azuma
Read more about this topic: List Of Authors Of Names Published Under The ICZN