| Acronym | Definition |
|---|
| ACE | Advanced Computing Environment |
| ACE | Angiotensin Converting Enzyme |
| ACE | Angiotensin-Converting Enzyme |
| ACE | Accelerated Christian Education |
| ACE | American Council on Education |
| ACE | AFE (Authorisation for Expenditure) Cost Estimate |
| ACE | American Council on Exercise |
| ACE | Adobe Certified Expert |
| ACE | Army Corps of Engineers |
| ACE | Arts Council of England |
| ACE | Access Control Entry |
| ACE | Advanced Compatibility Engineering (Acura) |
| ACE | Adult Continuing Education |
| ACE | Angiotensin I-Converting Enzyme |
| ACE | Adaptive Communication Environment (OO, C++, programming toolkit by Douglas Schmidt) |
| ACE | Adjusted Common Equity |
| ACE | Advanced Composition Explorer |
| ACE | American Coaster Enthusiasts |
| ACE | Advisory Centre for Education |
| ACE | Automated Commercial Environment (US Customs) |
| ACE | Administration and Cost of Elections (United Nations project) |
| ACE | Accounting and Computer Enterprises |
| ACE | Altamont Commuter Express |
| ACE | ASCII Compatible Encoding |
| ACE | American College of Endocrinology |
| ACE | Academic Centers of Excellence (ASPH) |
| ACE | American Coalition for Ethanol |
| ACE | American Cinema Editors |
| ACE | America's Cash Express |
| ACE | Association for the Conservation of Energy (UK) |
| ACE | Agent-based Computational Economics |
| ACE | Atmospheric Chemistry Experiment (University of Waterloo's Chemistry Department) |
| ACE | Action Community for Entrepreneurship (Singapore) |
| ACE | Allied Command, Europe |
| ACE | Aviation Combat Element |
| ACE | Alliance for Beverage Cartons and the Environment |
| ACE | Association of Colleges and Employers |
| ACE | Aerosol Characterization Experiment (IGAC) |
| ACE | Association of Consulting Engineers |
| ACE | Agricultural Communicators in Education |
| ACE | Automatic Computing Engine |
| ACE | Association of Canadian Ergonomists |
| ACE | Automatic Content Extraction |
| ACE | American College of Epidemiology |
| ACE | Australian Computer Society |
| ACE | Association for Consultancy and Engineering (UK) |
| ACE | Annual Conference and Exposition |
| ACE | Aviation Combat Element (MAGTF) |
| ACE | Assured Computing Environment (VMware) |
| ACE | Atmosphere, Climate & Environment |
| ACE | ACE Rapid Reaction Corps |
| ACE | Alliance for Clean Energy |
| ACE | Association des Cinémathèques Européennes (French: Association of European Filmarchives) |
| ACE | Australian Communication Exchange |
| ACE | Air Combat Element (NATO) |
| ACE | Adjusted Current Earnings |
| ACE | Association Canadienne d'Éducation (French: Canadian Education Association) |
| ACE | Acute Coronary Event |
| ACE | Area Control Error |
| ACE | Alternatives for Community and Environment |
| ACE | Acquisition Center of Excellence |
| ACE | Americans Communicating Electronically |
| ACE | Advisory Council on the Environment (UK) |
| ACE | Adult Christian Education |
| ACE | Analysis and Control Element |
| ACE | Association of Collegiate Entrepreneurs |
| ACE | Ashepoo, Combahee, and Edisto (South Carolina coastal river basin environment) |
| ACE | Antarctic Climate Evolution |
| ACE | Adverse Childhood Experience |
| ACE | Accuracy and Coverage Evaluation (US Census) |
| ACE | Auckland College of Education |
| ACE | Association of Club Executives |
| ACE | Achieving Competitive Excellence |
| ACE | Active Cornering Enhancement (automobile) |
| ACE | Atlantic City Expressway (New Jersey) |
| ACE | Any Credible Evidence |
| ACE | Active Corps of Executives |
| ACE | Alliance for Consumer Education |
| ACE | Association for Conferences and Events |
| ACE | Australasian Computing Education Conference |
| ACE | Access Control Encryption |
| ACE | Advanced Continuous Emission (Pioneer, plasma) |
| ACE | Affinity Capillary Electrophoresis |
| ACE | Arts for a Complete Education |
| ACE | Athlete Career and Education (UK and Australia) |
| ACE | Advanced Collaborative Environment |
| ACE | Automatic Calling Equipment |
| ACE | Action against Child Exploitation |
| ACE | American Cultural Exchange |
| ACE | Army Continuing Education |
| ACE | Association of Clinical Embryologists |
| ACE | Alliance for Construction Excellence |
| ACE | Association of Cultural Executives (Association des Cadres d'Institutions Culturelles - Canada) |
| ACE | Agriculture in Concert with the Environment (EPA) |
| ACE | Association of Christian Economists |
| ACE | Autonomous Centre of Edinburgh |
| ACE | Assembly on Computers in English |
| ACE | Alternating Conditional Expectations |
| ACE | Advisory Committee on the Environment (ICSU) |
| ACE | Alternative Center for Education |
| ACE | Attitude Control Electronics |
| ACE | Advanced Contrast Enhancement (Sony) |
| ACE | Agence pour le Commerce Extérieur |
| ACE | Assisting Children Everywhere (UNICEF-ATP partnership) |
| ACE | ASEAN Center for Energy |
| ACE | Adverse Channel Enhancements (Microcom) |
| ACE | Association of Chemistry and the Environment (Dijon, France) |
| ACE | Alternative Cooperative Education |
| ACE | Area Code/Exchange |
| ACE | Actuator Control Electronics (aviation) |
| ACE | Asynchronous Communications Element |
| ACE | Aide au Conseil aux Entreprises |
| ACE | Affirmative Civil Enforcement (Civil Division, US Department of Justice) |
| ACE | Academy of Counter-Terrorist Education (Louisiana State University National Center for Biomedical Research and Training) |
| ACE | Algebraic Combinatorics Environment |
| ACE | Advanced Cluster Environment |
| ACE | Association Canadienne d'Économique (Canadian Economics Association) |
| ACE | Average Current Earnings |
| ACE | Advanced Coding Efficiency |
| ACE | Automatic Checkout Equipment |
| ACE | Airborne Command Element |
| ACE | Access to a College Education |
| ACE | Associação dos Correspondentes Estrangeiros (Association of Foreign Correspondents; Brazil) |
| ACE | Achieving Customer Excellence (Quality of Service Survey) |
| ACE | Autoimmunity Centers of Excellence |
| ACE | Airport City Express (band) |
| ACE | Active Community Environment |
| ACE | Applied Control Engineering, Inc. (Process control integration company in Wilmington, DE, USA) |
| ACE | Applied Control Engineering, Inc. |
| ACE | Acceptance Checkout Equipment |
| ACE | Aerospace Camp Experience (Museum of Flight, Seattle, WA) |
| ACE | Aerobatic Competency Evaluator |
| ACE | Lanzarote, Canary Islands, Spain - Lanzarote (Airport Code) |
| ACE | After the Common Era |
| ACE | Association of Charter Educators |
| ACE | Adaptive Content Exchange (CacheFlow) |
| ACE | Airport Capacity Enhancement |
| ACE | Assistant Chief of Engineers |
| ACE | All-Cotton Elastic (bandage) |
| ACE | Adult and Community Educators of Florida, Inc. |
| ACE | Animated Communications Effectiveness |
| ACE | Adaptive Coherence Estimator |
| ACE | Anglican Church of England |
| ACE | Adaptive Communications Element (USAF) |
| ACE | Armored Combat Earthmover, M9 |
| ACE | Asia Capacity Exchange |
| ACE | adCenter Editor (Microsoft) |
| ACE | AMX Certified Expert |
| ACE | Advanced Cycle Engineering |
| ACE | Action for Cooperation in Economics |
| ACE | Accelerated Copilot Enrichment |
| ACE | Acorn Computer Enterprises (company) |
| ACE | Alliance of Confessing Evangelicals, Inc. |
| ACE | Adrenocortical Extract |
| ACE | Anchorage Council of Education |
| ACE | Animal Care of España |
| ACE | Access to Cosmetology Education |
| ACE | ASOS Controller Equipment (FAA) |
| ACE | Auto Club Europa eV |
| ACE | Active Constellation Extension |
| ACE | Association of Childhood Education |
| ACE | Advanced Computer Education |
| ACE | Auxiliary Control Element |
| ACE | Armored Combat Engineer |
| ACE | Active Core Exhaust |
| ACE | Advocates for Children's Education |
| ACE | American Cheer Elite (cheerleading camp) |
| ACE | Achieving the Competitive Edge |
| ACE | Automated Cost Estimator (ACEIT tool) |
| ACE | Animal Centers of Excellence |
| ACE | American Commodity Exchange (stock exchange) |
| ACE | Association of Conference Executives |
| ACE | Ammunition, Casualty, and Equipment |
| ACE | Advocacy Center for the Elderly |
| ACE | American Contracting Exchange Inc. |
| ACE | Air Combat Electronics |
| ACE | Air Combat Engagement |
| ACE | Accredited Center for Education (Sair Linux & GNU training facility) |
| ACE | Acquisition Center for Excellence (in various US DoD organizations) |
| ACE | Advisory Council of Experts (YourDictionary.com) |
| ACE | Adaptive Channel Estimation |
| ACE | Armored Combat Excavator |
| ACE | Army Communities of Excellence (Award program for Army bases) |
| ACE | Accessibility Center of Excellence |
| ACE | Americans for Constitutional Enforcement |
| ACE | Automated Cable Expertise (AT&T) |
| ACE | Accountability, Creativity and Efficiency |
| ACE | A Compact ENDF (file format) |
| ACE | Address Correction and Encoding (USPS) |
| ACE | Appalachian Controls Environmental |
| ACE | Airspace Control Element |
| ACE | Analytical Control Element |
| ACE | Antarctic Current Experiment |
| ACE | Adriamycin Cyclophosphamide Etoposide (chemotherapy regime) |
| ACE | Allied Capital Express (now part of Business Loan Express, Inc.) |
| ACE | Amex Commodities Exchange |
| ACE | Advanced Certification Equipment (aviation) |
| ACE | Actors Conservatory Ensemble |
| ACE | Air and space Constructive Environment (US Air Force) |
| ACE | Ada Common Environment |
| ACE | Agile Control Experiment |
| ACE | Advanced Control Experiment |
| ACE | aviation combat element Marine air-ground task force (MAGTF) |
| ACE | Association des Chefs d'Entreprise (French) |
| ACE | Accelerated Citizen Examination |
| ACE | Advancing Claims Excellence (insurance) |
| ACE | Assessment of Combat Effectiveness |
| ACE | Asociación de Colegiales Evangélicos (Association of Evangelical Collegiates; University of Puerto Rico, Mayaguez Campus) |
| ACE | Allegro Crypto Engine (Cisco) |
| ACE | Avenger Control Electronics |
| ACE | All Computing Environments (Telos Corp.) |
| ACE | Access-Controlled Entry |
| ACE | Assistant Corps Engineer |
| ACE | Airshow Certification Evaluator |
| ACE | Abstinence Commitment Effect (recovery programs) |
| ACE | Air Coordination Element |
| ACE | Adaptive Code-Excited linear prediction |
| ACE | Aircraft Carrier Engineering |
| ACE | Airborne Communications and Electronics |
| ACE | All-source Collection Element (US Army intelligence) |
| ACE | AMRAAM Captive Equipment |
| ACE | Amherst Chamber Ensembles |
| ACE | Aircraft Common Equipment |
| ACE | Aerosol Control Experiment |
| ACE | Articulation and Collaboration for Excellence (education) |
| ACE | Acquisition Career Enhancement |
| ACE | American Craft Endeavors |
| ACE | Arkansas Cheer Elite (cheerleading team) |
| ACE | Advanced Cost Estimating |
| ACE | ASAS Collateral Enclave |
| ACE | Alternate Capability Equipment |
| ACE | Advanced Configuration Engine (Selectica, Inc.) |
| ACE | Array Clamp Electronics |
| ACE | Alliance for Customer Excellence |
| ACE | Accelerated Curriculum for Entrepreneurs |
| ACE | Agile Controlled Experiment |
| ACE | Automated Conversion Environment (Jacada Ltd.) |
| ACE | Advanced Containment Experiment |
| ACE | Advanced Concept Exploration |
| ACE | Aerotherm Chemical Equilibrium |
| ACE | Aircraft Carrier Elevator |
| ACE | Atmospheric Collection Equipment |
| ACE | Auxiliary Cable Entrance facility |
| ACE | ARM Countermeasures Evaluator |
| ACE | Army Center for Excellence |
| ACE | Assault Cell Extreme (gaming clan) |
| ACE | Alternative Curriculum in Education |
| ACE | Aerospace Control Environment |
| ACE | Alternative and Complimentary Education (Wigan Metropolitan Borough Council) |
| ACE | Admissions officers and Credentials Evaluators |
| ACE | Axially Compliant Expansion tool (oilfield) |
| ACE | Advisory Council on Ethics (Texas Department of Criminal Justice) |
| ACE | Alkyl Cobalt Dicarbollide Extraction |
| ACE | Automated Contracts Environment |
| ACE | Application Connectivity Engineering |
| ACE | Adaptive Communication Equipment |
| ACE | Activities for Curriculum Enhancement |
| ACE | Advanced Components Evaluation |
| ACE | Advanced Concept Experiment |
| ACE | Air Combat Excellence |
| ACE | Acidity in Cloud Experiment |
| ACE | Access Capacity Enhancement |
| ACE | ADR Control Electronics |
| ACE | Active Control Aircraft |
| ACE | Audio-Connecting Equipment (ITU-T) |
| ACE | Army Countermeasures Evaluator |
| ACE | Automated Correspondence Engine |
| ACE | Acquisition Cost Evaluation |
| ACE | Accelerated Copilot Enhancement |
| ACE | Advancing Claim Excellence |
| ACE | Agency Communication Exchange |
| ACE | Aerospace Communications & Information Expertise |
| ACE | Automatic Crossconnect Equipment |
| ACE | Advanced Configurators for the Environment |
| ACE | Academic Camp for Enrichment |
| ACE | Air and Space Collaborative Environment (suite of M&S Applications that includes AFMSTT, ACE-IOS and AFSERS) |
| ACE | Automated Circuit Evaluation |
| ACE | Analytical Card Enhancement |
| ACE | Accelerated Cooperative Experience |
| ACE | A-interface Control Element |
| ACE | Assemblies, Components, and Elements |
| ACE | Automatic Calibration & Equalization |
| ACE | Aquaculture Consultancy and Engineering (The Netherlands) |
| ACE | American Craft Enterprises Inc |
| ACE | Africom Cyberspace Engagement |