Category:Articles with unsourced statements since March 2008
- Aaron (Nephite)
- Aaron Hadlow
- Aballister Bonaduce
- Richard Abanes
- Abaqa Khan
- David Abbasi
- Abbas Ibn Firnas
- Abbas Ibrahim
- Abduction phenomenon
- Paula Abdul
- Aberavon Beach
- Aberdeen
- Aberthin
- Aberystwyth
- Ableism
- Aboriginal history of Western Australia
- Lynne Abraham
- Absecon, New Jersey
- Absence seizure
- Abstinence-only sex education
- Abu Dhabi (emirate)
- Abundius of Pietra Montecorvina
- Academy Award for Best Picture
- 25th Academy Awards
- Academy of Art University
- Acantha
- Accelerometer
- Accessibility
- Accountancy
- Ace of Wands (Tarot card)
- Ach Gott, vom Himmel sieh darein
- Acheiropodia
- Achilles and Patroclus
- Acid indigestion
- Acid3
- Ackuset
- Ackworth School
- Across the Universe
- Act for the Settlement of Ireland 1652
- Acting President of the United States
- Action Comics
- Action at a distance (physics)
- Active Denial System
- Active suspension
- Acupuncture point
- Acute disseminated encephalomyelitis
- Ada Township, Dickey County, North Dakota
- Adab
- Adam-12
- Alice Adams (writer)
- Ashli Amari Adams
- Douglas Adams
- Eric Adams (singer)
- Joey Lauren Adams
- Sam Adams (Oregon politician)
- Adamson Act
- Adamson University
- Adam–God theory
- Adapter (computing)
- C. C. Adcock
- Addicted to Love (film)
- Addicted to Love (song)
- King Sunny Adé
- Sharon den Adel
- Adelaide Street Circuit
- Aden Emergency
- Adjustable rate mortgage