ADG
- A.D. Guanacasteca
- Active Data Guard
- Acyclic Directed Graph
- Additional Director General of Police
- Adg
- Advanced Data Guarding
- Aerospace
- Air-driven generator
- Airfield Defence Guards
- Alpha Delta Gamma
- Amlan Das Gupta
- Andegerebinha dialect
- Art Directors Guild
- Aubrey de Grey
- Australian Directors' Guild
- Autonomous Design Group
- Government
- Lenawee County Airport
- List of mine warfare vessels of the United States Navy
- National security