People beginning with A
- Adie, William John
- Adler, Alfred
- Adlersberg, David
- Adolf Richard, Henle
- Adson, Alfred Washington
- Aeby, Christoph Theodor
- Aertrycke, Region of Belgium
- Afzelius, Arvid
- Afzelius, Björn Arvid
- Agnew, Cornelius Rea
- Aguecheek, Sir Andrew
- Ahasverus, Ahasverus
- Ahlfeld, Johann Friedrich
- Ahumada Sotomayor, Juan Carlos
- Aicardi, Jean François Marie
- Åkerlund, Åke Olof
- Alagille, Daniel
- Alajouanine, Théophile A. J.
- Åland, Islands in the sun
- Albarran y Dominguez, Joaquin Maria
- Albatros, Bird
- Albee, Fred Houdlett
- Albers, F. H.
- Albers-Schönberg, Heinrich Ernst
- Albert, Eduard