| Acronym | Definition |
|---|
| ANS | Answer |
| ANS | American Nuclear Society |
| ANS | Advanced Networking Services |
| ANS | Answer (logging abbreviation) |
| ANS | American National Standard |
| ANS | Aquatic Nuisance Species |
| ANS | Autonomic Nervous System |
| ANS | Ammonium Nitrate Solution |
| ANS | Air Navigation Service |
| ANS | American Numismatic Society |
| ANS | Anna Nicole Smith |
| ANS | Army Nursing Service |
| ANS | Agência Nacional de Saúde (National Agency of Suplemental Health; Brazil) |
| ANS | Academy of Natural Sciences |
| ANS | Ansvarlig Selskap |
| ANS | Algemene Nederlandse Spraakkunst (Dutch grammar book) |
| ANS | Advanced Networking Software |
| ANS | Answer Message |
| ANS | Advances in Nursing Science |
| ANS | Advanced Network and Services |
| ANS | Advanced Neuromodulation Systems |
| ANS | Air Navigation System |
| ANS | Advanced Network Solutions |
| ANS | AirNet Systems (Columbus, OH) |
| ANS | American Name Society |
| ANS | Alaskan North Slope |
| ANS | Advanced Neutron Source |
| ANS | Autonomous Navigation System |
| ANS | Answer Tone |
| ANS | Alaska Native Sisterhood |
| ANS | Anthocyanidin Synthase |
| ANS | Applied Natural Sciences, Inc. (Hamilton, OH; est. 1993) |
| ANS | Authoritative Name Server |
| ANS | Application Networking Service (Cisco) |
| ANS | Acuerdo de Nivel de Servicio (Spanish: Service Level Agreement) |
| ANS | Astronomical Netherlands Satellite |
| ANS | American Neurotology Society |
| ANS | Advanced Networks and Services |
| ANS | Apple Network Server (Apple Computers) |
| ANS | Azerbaijan News Service |
| ANS | Acorn News Service (mailing list) |
| ANS | Alcatel Network Systems |
| ANS | Associação Nacional de Sargentos (Portugal - Sargeants National Association) |
| ANS | Agentia Nationala pentru Sport (Romania) |
| ANS | ATM Name Service |
| ANS | Artificial Neural System |
| ANS | Adaptive Noise Shaping (DSP, psychoacoustics) |
| ANS | Atlantic Nuclear Services Ltd. |
| ANS | Area Navigation System |
| ANS | Astro-Inertial Navigation System |
| ANS | Alternative News Source |
| ANS | Archbishop Neale School (Charles County, Maryland) |
| ANS | Action Nord Sud Handicap International |
| ANS | Actiefront Nationale Socialisten |
| ANS | Automatic Notification System |
| ANS | Anglican News Service |
| ANS | Advanced Narrowband System |
| ANS | Anilinonaphthalene Sulfonates |
| ANS | Active Network Service |
| ANS | American National School |
| ANS | Arkansas Numismatic Society |
| ANS | Advanced Navigation School |
| ANS | Automatic Network Synchronization |
| ANS | Aeromedical Neuropsychiatric Standards |
| ANS | Anti-Navy Supersonic |
| ANS | Async Network Survivability |
| ANS | Applications Network Software |
| ANS | Ameritech Network Services |