Encyclopedias, Almanacs, Transcripts, and Maps
- AGGLUTINATING
- Aghuls
- Agiotista
- Agramonte y Loynaz, Ignacio (1841–1873)
- Agregado
- Agreste
- Agricola, Rudolf 1444–1485 Humanist and Author
- Agricultural Fairs
- Agrippa (c. 50 BCE–c. 150 CE)
- Agrippa of Nettesheim, Heinrich 1486–1535 Philosopher
- Agrippa von Nettesheim, Henricus Cornelius (1486–1535)
- Agta
- Aguardiente de Pisco
- Aguaruna
- Aguascalientes, Convention of
- Aguayo, Marqués de (c. 1677–1734)
- Aguayo, Sergio (1947–)
- Agüero Rocha, Fernando (1918–)
- Agüeybana II (?–1511)
- Aguiar, Adonias (1915–1990)