Encyclopedias, Almanacs, Transcripts, and Maps
- Amazon Region
- Amazon River
- Amazonas
- Amazonia
- Ambae
- Ambrogi, Arturo (1875–1936)
- Ameche, Don
- Ameghino, Florentino (1854–1911)
- Amélia, Empress (1812–1873)
- AMELIORATION
- Amenábar, Juan (1922–1999)
- American Atlantic and Pacific Ship Canal Company
- AMERICAN BLACK ENGLISH
- American Council for Judaism
- AMERICAN ENGLISH
- American Immigrants
- American Industrial Society for Machinery (SIAM)
- American Isolates
- American Jewish Congress
- American Revolution, Influence of