ABG
- ABG Shipyard
- Abaga language
- Abakan-Avia
- Abingdon Airport
- Acoustic bass guitar
- Aditya Birla Group
- African Barrick Gold
- African Burial Ground National Monument
- Alpha Beta Gamma
- Altenburger Land
- Arterial blood gas
- Asian Beach Games
- Asian baby girl
- Atlanta Botanical Garden
- Authentic Brands Group
- Autonomous Bougainville Government
- Avis Budget Group
- Avrom Ber Gotlober