ASN
- .au
- ASN Bank
- ASN.1
- Access network
- Addlestone railway station
- Address space number
- Adobe Solutions Network
- Advance ship notice
- Alcatel Submarine Networks
- All Sports Network
- American Society for Neurochemistry
- American Society for Nutrition
- American Society of Nephrology
- American Sports Network
- Archstone
- Asansol Junction railway station
- Asparagine
- Assistant Secretary of the Navy
- Associate of Science in Nursing
- Associated Screen News of Canada
- Association for the Study of Nationalities
- Australasian Steam Navigation Company
- Autonomous system (Internet)
- Autorité de sûreté nucléaire
- Aviation Safety Network
- CTV Two Atlantic
- Education (Additional Support for Learning) (Scotland) Act 2004
- Talladega Municipal Airport