Encyclopedias, Almanacs, Transcripts, and Maps
- ?ukasiewicz, Jan (1878–1956)
- ?zmir Economic Congress
- A Priori and a Posteriori
- Aaron, Henry Louis ("Hank")
- Aaron, Henry Louis ("Hank")
- Aaronsohn Family
- Abad y Queipo, Manuel (1751–1825)
- Abadía Méndez, Miguel (1867–1947)
- Abalos, José de
- Abascal y Souza, José Fernando (1743–1821)
- Abasolo, Mariano (c. 1783–1816)
- Abau
- Abbad y Lasierra, Íñigo (1745–1813)
- Abbagnano, Nicola (1901–1990)
- Abbott, George Francis
- ABC Countries
- ABC Party
- Abd al-Aziz ibn al-Hassan
- Abd al-Hadi Family
- Abd al-Hadi, Tarab