Category:All articles that may contain original research
- Air Tigers
- Airborne aircraft carrier
- Aircraft structures
- Airline
- Airliner
- Airsoft
- Aita (mythology)
- Ajantha
- Akira (manga)
- Al-
- Albanian pederasty
- Albanisation
- Albany, New York
- Alberta separatism
- Album (Public Image Limited album)
- Album-oriented rock
- Alex Kidd in the Enchanted Castle
- Alexander Avdonin
- Alfie (1966 film)
- Algorithmics of sudoku
- Abbas Ali
- Alien Tort Statute
- Alien hand syndrome
- Aliyah from the Commonwealth of Independent States in the 1990s
- Heydar Aliyev
- All Families Are Psychotic
- All These Things I Hate (Revolve Around Me)
- All the Pretty Horses
- All-four
- Allan Line Royal Mail Steamers
- Debbie Allen
- Rod Allen
- Allison Hill (Harrisburg)
- Gim Allon
- Almah
- Alone in the Dark 2
- Alpha Psi Lambda
- Alphanumeric code
- Alt.sex
- Altars in Latin America
- Altered Realities Campaign
- Alternative electronic
- Alternative theories of the bombing of Pan Am Flight 103
- Alveolar osteitis
- Alyss Heart
- Amadou Diallo
- Amagasaki rail crash
- Amano Yasukage
- Amatsu-Mikaboshi
- The Amazing Adventures of Kavalier & Clay
- Amazon.com
- B. R. Ambedkar
- Ambient industrial
- America and the Haitian Revolution
- America's Next Top Model
- American Opposition to the War of 1812
- American Pie Presents: The Naked Mile
- American football in the Netherlands
- American patriotic music
- Americana
- Amiga Advanced Architecture chipset
- Amniote
- Amphetamine
- Ampleforth College
- Amram
- Kamal Amrohi
- Namie Amuro