Encyclopedias, Almanacs, Transcripts, and Maps
- Arkansas State University
- Arkhangelsk
- Arkite
- Arland, Marcel
- Arlberg
- Arledge, Roone Pinckney, Jr.
- Arles, kingdom of
- Arlington Heights
- Arlington House, The Robert E. Lee Memorial
- Arlington Memorial Bridge
- Armagnacs and Burgundians
- Armey, Dick
- Armistead, George
- Armistice Day
- Armoni
- armonica
- arms, coat of
- Arms, John Taylor
- Army, United States Department of the
- armyworm