| Acronym | Definition |
|---|
| ANA | American Nurses Association |
| ANA | Anaheim Angels (baseball team) |
| ANA | Afghan National Army |
| ANA | All Nippon Airways (Japanese airline company & ICAO code) |
| ANA | Analog |
| ANA | Anorexia |
| ANA | American Numismatic Association |
| ana | anesthesia |
| ANA | A New Approach (womens clothing brand) |
| ANA | Agencia Nacional de Aguas (Brazil) |
| ANA | Antinuclear Antibody |
| ANA | Alsace Nord Athlétisme (French: Northern Alsace Athletics; Alsace, France) |
| ANA | Anaphylaxis |
| ANA | Active Network Abstraction (Cisco) |
| ANA | Associazione Nazionale Alpini (Italy; National Organization of Mountain Police) |
| ANA | American Neurological Association |
| ANA | Anaphylactoid |
| ANA | Administration for Native Americans (US Government) |
| ANA | Appraisers National Association |
| ANA | Alliance for Nuclear Accountability |
| ANA | Anticardiolipin Antibody |
| ANA | Aeroportos e Navegação Aérea (Portuguese Airports) |
| ANA | Acoustic Neuroma Association |
| ANA | Anguilla National Alliance |
| ANA | American Nutraceutical Association |
| ANA | American National Anthem |
| ANA | Antinuclear Antibodies Test |
| ANA | Annual Needs Assessment |
| ANA | American Nyckelharpa Association |
| ANA | American Negro Academy |
| ANA | Archives Network of Alberta (database) |
| ANA | Association des Naturalistes de l'Ariège (French: Ariege Association of Naturalists; Ariege, France) |
| ANA | Active Network Architecture |
| ANA | Air Force/Navy/Army |
| ANA | Asociacion Nuestros Ahijados (Antigua, Guatemala, Central America) |
| ANA | Al-Noor Academy (Massachusetts) |
| ANA | Average Number of Ancestors |
| ANA | Asociacion Nacional Automovilistica (Spanish: National Automobile Association; Mexico) |
| ANA | Advanced Nursing Assistant |
| ANA | Alabama Nurserymen's Association |
| ANA | Advanced Network Analyst |
| ANA | Advanced Networks Applications |
| ANA | Appropriated but Not Authorized (Army Budget) |
| ANA | Adiabatic Nuclei Approximation |
| ANA | Autoshift Neutral Actuator |
| ANA | Amazon Nation Alliance |
| ANA | ATC Network Administrator |
| ANA | Another New Acronym |
| ANA | Anne Noonan and Associates (Gatineau, QB, Canada) |
| ANA | Arizona Newspapers Association |
| ANA | Association of Nigerian Authors |
| ANA | Automatic Number Announcement |
| ANA | Athens News Agency |
| ANA | Article Number Association |
| ANA | Association of National Advertisers |
| ANA | Association of Naval Aviation |
| ANA | average net assets |
| ANA | Australian Natives Association |
| ANA | Automatic Network Analyzer |
| ANA | Atkins Nutritional Approach (weight control) |