| MEA | Maritime Employers Association | 海运雇主协会 |
| MEA | Municipal Employees Association | 市政雇员协会 |
| MEA | Music Education Association | 音乐教育协会 |
| MEA | Monoethanolamine | 单乙醇胺 |
| MEA | Minimum En-route Altitude | 最低航路高度 |
| MEA | Middle East Airlines Airliban, Lebanon (ICAO code) | 中东航空公司Airliban，黎巴嫩（ICAO代码） |
| MEA | Mobile Electronics Association | 移动电子协会 |
| MEA | Minnesota Employers' Association | 明尼苏达州的雇主协会 |
| MEA | Midwest Energy Association | 中西部能源协会 |
| MEA | Municipal Engineers Association (Ontario, Canada) | 市政工程师协会（加拿大安大略省） |
| MEA | Marion Education Association | 马里昂教育协会 |
| MEA | Materials Engineering Associates | 材料工程协会 |
| MEA | Macae, Rio de Janeiro, Brazil (Airport Code) | 巴西里约热内卢Macae（机场代码） |
| MEA | Mechanical Engineering Association | 机械工程协会 |
| MEA | Minnesota Educators Association | 明尼苏达州教育工作者协会 |
| MEA | Marketing Educators' Association | 行销教育工作者协会 |
| MEA | Motorcycle Event Association, Inc. | 摩托车赛事协会。 |
| MEA | MidAtlantic Employers' Association | MidAtlantic雇主协会 |
| MEA | Media Ecology Association | 媒体生态协会 |
| MEA | Michigan Education Association | 密歇根州教育协会 |
| MEA | Municipal Engineer's Association | 市政工程师协会 |
| MEA | Minnesota Electrical Association | 明尼苏达州电气协会 |
| MEA | Minnesota Education Association | 明尼苏达州教育协会 |
| MEA | Music Educators Association | 音乐教育家协会 |
| MEA | Municipal Electric Association | 市电力协会 |
| MEA | Municipal Electric Association (Toronto, Ontario, Canada) | 市电力协会（加拿大安大略省多伦多） |
| MEA | Middle East and Africa | 中东和非洲 |
| MEA | Multiple Endocrine Adenomatosis | 多发性内分泌腺瘤病 |
| MEA | Multilateral Environmental Treaty | 多边环境条约 |
| MEA | Major Economic Area | 主要经济区 |
| MEA | Major Environmental Analysis | 主要环境分析 |
| MEA | Multilateral Environmental Agreement | 多边环境协定 |
| MEA | Manufacturing Expense Analysis | 制造费用分析 |
| MEA | Multi-Element Array | 多元素阵列 |
| MEA | Measurement Engineering Australia | 澳大利亚计量工程 |
| MEA | Mass Energy Alliance | 大众能源联盟 |
| MEA | Munitions Effects Assessment (Defense Threat Reduction Agency modeling toolset) | 弹药效果评估（国防威胁降低局建模工具集） |
| MEA | More Electric Aircraft | 更多电动飞机 |
| MEA | Mouvement Écologique AlgÉrien (Algeria ecological movement) | Mouvement Écologique AlgÉrien (Algeria ecological movement) |
| MEA | Multiple-Element Antenna | 多元件天线 |
| MEA | Model-Eliciting Activity | 模型激发活动 |
| MEA | Multiobjective Evolutionary Algorithm | 多目标进化算法 |
| MEA | Multiple Element Arrangement (accounting) | 多要素安排（会计） |
| MEA | Minimum en Route Altitude | 最小航路高度 |
| MEA | Multi-Electrode Array | 多电极阵列 |
| MEA | Munitions Effectiveness Assessment | 弹药有效性评估 |
| MEA | Midwest Express Airlines | 中西部快运航空公司 |
| MEA | Maximum Exclusion Allowance (in a Tax Sheltered Annuity) | 最高免税额（在免税年金中） |
| MEA | Marine Engineering Artificer (Royal Navy UK) | 海洋工程技工（英国皇家海军） |
| MEA | Mismatch of Equipment and Attributes | 设备和属性不匹配 |
| MEA | Ministry of External Affairs (India) | 外交部（印度） |
| MEA | Maryland Energy Administration | 马里兰州能源管理局 |
| MEA | Multiple Engine Architecture | 多引擎架构 |
| MEA | Mead Corporation | 米德公司 |
| MEA | Means Ends Analysis | 均值-终点分析 |
| MEA | Macae, Rio de Janeiro, Brazil | 巴西里约热内卢Macae |
| MEA | Multi-Element Antenna | 多元件天线 |
| MEA | Marklin Enthusiasts of America | 美国的马克林狂热者 |
| MEA | multiple endocrine adenopathy | 多发性内分泌腺病 |
| MEA | Minimum En Route IFR Altitude | 最小航路IFR高度 |
| MEA | Medical Examiner of Arkansas | 阿肯色州法医 |
| MEA | Materials and Equipment Acceptance | 材料和设备验收 |
| MEA | Migrant Education Agency | 移民教育局 |
| MEA | Message Encryption Algorithm | 消息加密算法 |
| MEA | Missionary Education Assistance | 宣教援助 |
| MEA | Martin Ennals Award | 马丁·恩纳尔斯奖 |
| MEA | Merchandising Execution Associate | 销售执行助理 |
| MEA | Major Expense Authorization | 主要费用授权 |
| MEA | Maine Education Assessment | 缅因州教育评估 |
| MEA | Mobile Entertainment Analyst | 移动娱乐分析师 |
| MEA | Multi-service Enterprise Access (Motorola) | 多业务企业接入（摩托罗拉） |
| MEA | Mission Essential Application | 任务基本应用程序 |
| MEA | Membrane Electrode Assembly | 膜电极组件 |
| MEA | Maintenance Entity Assembly | 维护实体组件 |
| MEA | Maintenance Engineering Analysis | 保养工程分析 |
| MEA | Materials Equipment and Acceptance (New York City) | 材料设备和验收（纽约市） |
| MEA | Maine Educational Assessment | 缅因州教育评估 |
| MEA | Minimum Enroute Altitude | 最小航路高度 |
| MEA | Malt Extract Agar | 麦芽提取物琼脂 |
| MEA | Main Engine Assembly | 主机总成 |
| MEA | Ministry of Economic Affairs | 经济事务部 |
| MEA | Metal Edge Amplifier | 金属边缘放大器 |
| MEA | Management Engineering Activity | 管理工程活动 |
| MEA | Market Efficiency Audit (accounting) | 市场效率审计（会计） |
| MEA | Mass/Energy Analysis | 质量/能源分析 |
| MEA | Miscellaneous Expense Allowance | 杂项费用津贴 |
| MEA | Modern Equivalent Asset | 现代等价资产 |
| MEA | Messaging Enabled Applications | 启用消息的应用程序 |
| MEA | Mount Ellis Academy (Bozeman, Montana) | 埃利斯山学院（蒙大拿州波兹曼） |
| MEA | Maximum Estimation Accuracy | 最大估计精度 |
| MEA | Mesh Enabled Architecture (MeshNetworks) | 支持网格的体系结构（MeshNetworks） |
| MEA | monoethanolamine(surfactant) | 单乙醇胺（表面活性剂） |
| MEA | Maximo Enterprise Adapter | Maximo Enterprise适配器 |
| MEA | music electroacupuncture | 音乐电针 |
| MEA | mercaptoethyl amine | 巯基乙胺 |
| MEA | multiple endocrine adenomas | 多发性内分泌腺瘤 |
| MEA | monoethylaniline | 一乙基苯胺 |
| MEA | methoxyethylmercury acetate | 乙酸甲氧基乙基汞 |