Encyclopedias, Almanacs, Transcripts, and Maps
- Alan Archibald Campbell Swinton
- Alan Barlett Shepard Jr
- Alan LaVern Bean
- Alan Turing
- Alary, François
- Albatrosses: Diomedeidae
- Albert C. Read
- Albert Claude
- Albert Girard
- Albert Niemann
- Albert P. Calderón
- Albert Szent-Györgyi
- Albert W. Stevens
- Albert Wallace Hull
- Albigerius (ca. 400 C.E.)
- Albrecht von Graefe
- Alchindus (or Alkindi) (ca. ninth centuryC.E.)
- Alcohol and other Drugs in a Public Health Context
- Alcohol consumption
- Alcohol-related Neurological Disease