Encyclopedias, Almanacs, Transcripts, and Maps
- Alexius IV
- Alexius V
- Alexy II
- alfalfa caterpillar
- Alfarabius
- Alfaro, Flavio Eloy
- Alferov, Zhores Ivanovich
- Alfiós
- Alfonsine tables
- Alfonso III (Spanish king of Asturias)
- Alfonso VII (Spanish king of Castile and León)
- Alfonso XI (Spanish king of Castile and León)
- Alfraganus
- Alfred University
- Alfvén, Hannes Olof Gösta
- algebraic number
- Alger, Russell Alexander
- algum
- Ali Bey
- Ali Pasha