Akademik
Anfi - Avog
Anfinsen
Anfinsen , Christian Boehmer
Ångstrom , Anders Jonas
Antoniadi , Eugène Michael
Apollonius of Perga
Appel , Kenneth
Appel, Kenneth
Appleton , Sir Edward Victor
Arago
Arago , Dominique François Jean
Arber , Werner
Archimedes
Argelander , Friedrich Wilhelm August
Aristarchus of Samos
Aristotle
Arrhenius , Svante August
Astbury , William Thomas
Aston , Francis William
Atanasoff , John Vincent
Audubon , John James
Auer
Auger , Pierre Victor
Averroës
Avery , Oswald Theodore
Avery, Oswald Theodore