| AEC | Atomic Energy Corporation [South Africa] | 原子能公司 |
| AEC | American Engineering Council | 美国工程委员会 |
| AEC | Army Electronics Command | （美国）陆军电子司令部 |
| AEC | automobile emission control | 汽车排放控制 |
| AEC | African Economic Community | 非洲经济共同体 |
| AEC | Atomic Energy Commission | 原子能委员会 |
| AEC | Atomic Electron Correlations | 原子电子相关 |
| AEC | Acoustic Echo Cancellation | 回声消除器 |
| AEC | Association Of Evangelical Congregations | 福音会协会 |
| AEC | Association of Exhibition Contractors | 展览承包商协会 |
| AEC | Aquatics Emergency Care (Award, Lifesaving Society of Canada) | 水上急救（加拿大救生协会奖） |
| AEC | Association Executives Council | 协会执行理事会 |
| AEC | Association of Electric Cooperatives | 电力合作社协会 |
| AEC | Arithmetic Element Controller | 算术元件控制器 |
| AEC | ASEAN Economic Community | 东盟经济共同体 |
| AEC | Army Education Center | 陆军教育中心 |
| AEC | Automated Electronic Classroom | 自动化电子教室 |
| AEC | Anglican Essentials Canada, Inc (Milton, ON, Canada) | 英国圣公会精要加拿大公司（加拿大安大略省米尔顿） |
| AEC | Ankyloblepharon-Ectodermal Defects | 甲睑外皮肤缺损 |
| AEC | Assessment of Equipment Condition | 设备状况评估 |
| AEC | Able Enrichment Centre (Winnipeg, Manitoba, Canada) | Able Enrichment Centre（加拿大马尼托巴省温尼伯市） |
| AEC | Aviation Electronics Combat | 航空电子作战 |
| AEC | ARS Electronica Center | ARS电子中心 |
| AEC | Aerial Experimental Component | 航空实验组件 |
| AEC | Alberta Energy Company Ltd | 阿尔伯塔能源有限公司 |
| AEC | Atlas Educational Center | 阿特拉斯教育中心 |
| AEC | Chief Aviation Electrician's Mate (Naval Rating) | 主要航空电工的伴侣(海军等级) |
| AEC | Alabama Electric Cooperative, Inc. (Andalusia, AL) | 阿拉巴马州电力合作社（安达卢西亚，亚利桑那州） |
| AEC | Advanced Electronics Company | 先进电子公司 |
| AEC | Acceptable Effluent Concentration | 可接受的废水浓度 |
| AEC | Association EuropÉenne des Cheminots (French) | Association EuropÉenne des Cheminots (French) |
| AEC | Airborne Electronic Combat | 机载电子作战 |
| AEC | Advanced Environmental Corporation | 先进环境公司 |
| AEC | Authorized Education Centre | 授权教育中心 |
| AEC | Authorized Education Center | 授权教育中心 |
| AEC | AsociaciÓn Española de Cooperativas | AsociaciÓn Española de Cooperativas |
| AEC | Aviation Electronic Combat | 航空电子作战 |
| AEC | Alternate Equipment Custodian | 备用设备保管人 |
| AEC | Average Efficiency Cost | 平均效率成本 |
| AEC | Anno Emmanuelis Christi (Latin; epigraphy) | Anno Emmanuelis Christi（拉丁语；金石学） |
| AEC | Architecture Engineering And Construction | 建筑工程与施工 |
| AEC | Adult Earnings Change | 成人收入变化 |
| AEC | The Australian Education Centre | 澳大利亚教育中心 |
| AEC | alpha-electric cell | 阿尔法电池 |
| AEC | Atlantic and East Carolina Railway Company | 大西洋和东卡罗来纳铁路公司 |
| AEC | Associated Equipment Company | 关联设备公司 |
| AEC | Antilles Episcopal Conference | 安的列斯主教会议 |
| AEC | The Annual Equivalent Capital | 年度等效资本 |
| AEC | Alliant Energy Center | 联合能源中心体育场 |
| AEC | Australian Electoral Comission | 澳大利亚选举委员会 |
| AEC | AsociaciÓn de Estudiantes Carlistas | AsociaciÓn de Estudiantes Carlistas |
| AEC | Associated Estates Realty Corporation | 联合房地产公司 |
| AEC | Automatic Engine Control | 发动机自动控制 |
| AEC | Area of Environmental Concern | 环境关注领域 |
| AEC | Acoustic Echo Control | 声学回声控制 |
| AEC | Automatic Exposure Control | 自动曝光控制 |
| AEC | Art Ensemble of Chicago | 芝加哥艺术团 |
| AEC | Area Equipment Compound | 区域设备区 |
| AEC | Australian Environmental Council | 澳大利亚环境委员会 |
| AEC | AsociaciÓn Experimental Cafetalera (Experimental Coffee Association, Guatemala) | AsociaciÓn Experimental Cafetalera (Experimental Coffee Association, Guatemala) |
| AEC | Acoustic Echo Controller | 声学回声控制器 |
| AEC | Aeromedical Evacuation Crew (Air Force Instruction) | 航空医疗后送人员（空军指令） |
| AEC | Army Environmental Center | 陆军环境中心 |
| AEC | Aluminum Extruders Council | 铝挤压机委员会 |
| AEC | Advanced Error Correction (CDS) | 高级纠错（CDS） |
| AEC | Anger Engineering Co. (Milwaukee, WI) | 安格尔工程公司（威斯康星州密尔沃基） |
| AEC | American Eventing Championships | 美国田径锦标赛 |
| AEC | Allied Environmental Consultants Ltd (Hong Kong) | 联合环境咨询有限公司（中国香港） |
| AEC | Associate Enforcement Counsels | 助理执法顾问 |
| AEC | Anglican Episcopal Church | 英国圣公会 |
| AEC | AFSCN Executive Council | AFSCN执行委员会 |
| AEC | Associated Equipment Company, Ltd | 联合设备有限公司 |
| AEC | Aegis Education Center | Aegis教育中心 |
| AEC | Amino Ethyl-Carbazole | 氨基乙基咔唑 |
| AEC | Agriculture Executive Council | 农业执行委员会 |
| AEC | Automatic Edge Control | 自动边缘控制 |
| AEC | Aft Equipment Compartment | 后部设备舱 |
| AEC | Acoustic Echo Canceler | 声学回声抵消器 |
| AEC | Army Environmental Command (US Army; formerly Army Environmental Center) | 陆军环境司令部（美国陆军；前身为陆军环境中心） |
| AEC | Analog Electronic Controls | 模拟电子控制 |
| AEC | Anime Enthusiast Club | 动漫爱好者俱乐部 |
| AEC | Agency Emergency Coordinator | 机构应急协调员 |
| AEC | Agent-Environment Coordination | 代理环境协调 |
| AEC | Automatic Exhaust Control | 自动排气控制 |
| AEC | Army Evaluation Center (US Army; formerly EAC, Evaluation Analysis Center) | 陆军评估中心（美国陆军；原EAC，评估分析中心） |
| AEC | All England Club | 全英俱乐部 |
| AEC | Automatic Exciter Control | 自动励磁机控制 |
| AEC | Architecture, Engineering and Construction | 建筑、工程和施工 |
| AEC | Asian Economic Community | 亚洲经济共同体 |
| AEC | Avionics Engineering Center | 航空电子工程中心 |
| AEC | Atomic Energy Commission (superseded by ERDA) | 原子能委员会（由ERDA取代） |
| AEC | Australian Electoral Commission | 澳大利亚选举委员会 |
| AEC | Adaptive Echo Cancellation | 自适应回声消除 |
| AEC | Alternative Energy Coalition | 替代能源联盟 |
| AEC | Agency of Environmental Conservation | 环境保护局 |
| AEC | Address Element Correction (USPS) | 地址元素更正（USPS） |
| AEC | Atomic Energy Council (Taiwan, China) | 原子能委员会（中国台湾） |
| AEC | Atomic Energy Committee (Kazakhstan) | 原子能委员会（哈萨克斯坦） |
| AEC | Area Emergency Coordinator | 区域应急协调员 |