(Adie, 1925–2006)
(Adloff)
new name: Györgyné Nikolényi (Adorján, 1945–)
Афонин Максим Алексеевич (Afonin, 1984–)
(C. Agardh, 1785–1859)
(An. Agarwal, 1949–2020)
(P.N. Agarwal)
(Agashe, 1939–2023)
(Agasie)
(J. Agassiz, 1807–1873)