| SEA | Southeast Asia | 东南亚 |
| SEA | Single European Act | 《单一欧洲法案》 |
| SEA | Special Effect Amplifier | 特殊效果放大器 |
| SEA | Seattle | 西雅图 |
| SEA | Sudden Enhancement of Atmospherics | 大气干扰突然加强 |
| SEA | Structural Engineers Association | 结构工程师协会 |
| SEA | Sleeman Employee Association (Ontario, Canada) | Sleeman员工协会（加拿大安大略省） |
| SEA | Safeway Employee' Association | Safeway员工协会 |
| SEA | Society of Egyptian Architects (Cairo, Egypt) | 埃及建筑师协会（埃及开罗） |
| SEA | Seattle, WA, USA - Seattle Tacoma International Airport (Airport Code) | 美国华盛顿州西雅图-西雅图塔科马国际机场（机场代码） |
| SEA | Society of Equestrian Artists | 马术艺术家协会 |
| SEA | Society for Electronic Access | 电子访问协会 |
| SEA | Systems Enhancement Associates | 系统增强协会 |
| SEA | Seattle Education Association | 西雅图教育协会 |
| SEA | Systems Engineering Association | 系统工程协会 |
| SEA | Suncoast Epilepsy Association, Inc. | 阳光海岸癫痫协会。 |
| SEA | Senior Executives Association | 高级管理人员协会 |
| SEA | South East Asia | 东南亚 |
| SEA | Software Engineering Apprenticeship | 软件工程学徒 |
| SEA | Symposium on Experimental Algorithms | 实验算法研讨会 |
| SEA | Strategic Enterprise Architecture | 战略企业架构 |
| SEA | Seattle Mariners (baseball team) | 西雅图水手队（棒球队） |
| SEA | Society for Education in Anesthesia | 麻醉教育学会 |
| SEA | NAVSEA (US Navy) | NAVSEA（美国海军） |
| SEA | Simplified Email Address | 简化电子邮件地址 |
| SEA | Support Electronics Assembly | 支撑电子组件 |
| SEA | Single Engine Aircraft | 单引擎飞机 |
| SEA | St. Eustatius Alliance (Netherlands Antilles) | 圣尤斯特歇斯联盟（荷属安的列斯群岛） |
| SEA | Semiconductor Equipment Assessment | 半导体设备评估 |
| SEA | Societa' Esercizi Aeroportuali (airports of Malpensa and Linate, Milan, Italy) | “Esercizi Aeroportuali工程的Malpensa和Linate(机场,意大利米兰的) |
| SEA | Sound Effect Amplifier (audio equipment) | 音效放大器（音频设备） |
| SEA | Supply Excellence Award (US Army) | 卓越供应奖（美国陆军） |
| SEA | Successive Elimination Algorithm | 逐次消去算法 |
| SEA | Statistical Energy Analysis | 统计能量分析 |
| SEA | Smart Ethernet Adapter | 智能以太网适配器 |
| SEA | Software Engineering and Applications | 软件工程与应用 |
| SEA | Service Educational Activities | 服务教育活动 |
| SEA | Secretaria de Estado de Agricultura (Dominican Republic) | 农业部长（多米尼加共和国） |
| SEA | Sea Echelon Area | 海梯队区域 |
| SEA | Samsung Electronics America | 三星电子美国 |
| SEA | Single-Element Antenna | 单元件天线 |
| SEA | State Enforcement Agreement | 国家强制执行协议 |
| SEA | Strategic Enterprise Agreement | 战略企业协议 |
| SEA | Supplier Excellence Alliance (Irvine, CA) | 卓越供应商联盟（加利福尼亚州欧文） |
| SEA | shock-elicited aggression | 休克引起的攻击 |
| SEA | sensitized erythrocyte agglutination(test) | 致敏红细胞凝集（试验） |
| SEA | soluble egg antigen | 可溶性卵抗原 |
| SEA | sheep erythrocyte agglutination(test) | 绵羊红细胞凝集试验 |
| SEA | Seattle Seahawks | 西雅图海鹰 |
| SEA | staphylococcal enterotoxin a | 葡萄球菌肠毒素a |
| SEA | Science and Engineering Alliance | 科学与工程联盟 |
| SEA | Support Encouragement And Accountability | 支持鼓励和责任 |
| SEA | Senate Enrolled Act | 参议院登记法案 |
| SEA | Simply Enchating Angels | 让天使着迷 |
| SEA | Students For Environmental Action | 环境行动学生 |
| SEA | Self Expanding Application | 自扩展应用程序 |
| SEA | SecciÓn EconÓmico- Administrativa | SecciÓn EconÓmico- Administrativa |
| SEA | Systems Engineering And Assessment | 系统工程与评估 |
| SEA | Self Expanding Archive | 自我扩展存档 |
| SEA | Self Evident Application | 不言自明的应用程序 |
| SEA | Self- Extracting compressed Macintosh file Archive | 自解压压缩Macintosh文件存档 |
| SEA | State Earthquake Administration | 国家地震局 |
| SEA | Superior Engineering Associates | 高级工程助理 |
| SEA | Strategic Education Activities | 战略教育活动 |
| SEA | Science and Education Administration | 科学和教育管理 |
| SEA | Scientist's Expert Assistant (NASA) | 店员(NASA科学家的专家) |
| SEA | Science Experience Abroad | 国外科学经验 |
| SEA | Self-Employment Assistance (Canada) | 自营职业援助（加拿大） |
| SEA | Simple and Efficient Algorithm | 简单高效的算法 |
| SEA | Science and Engineering Ambassador | 科学与工程大使 |
| SEA | Single European Act (European single market treaty 1986) | 单一欧洲法案（1986年欧洲单一市场条约） |
| SEA | Strategic Environmental Assessment | 战略环境评估 |
| SEA | Soledad Enrichment Action | 索莱达浓缩行动 |
| SEA | State Education Agency | 国家教育局 |
| SEA | Sudden Enhancement of Atmospheres | 大气突然增强 |
| SEA | State Economic Area | 州经济区 |
| SEA | Senior Enlisted Advisor | 高级注册顾问 |
| SEA | Self Extracting Archive | 自解压存档 |
| SEA | Special Education Assistant | 特殊教育助理 |
| SEA | Securities Exchange Act | 证券交易法 |
| SEA | Secure Extranet Appliance (SafeWeb) | 安全Extranet设备（SafeWeb） |
| SEA | Safety Engineering Agent | 安全工程代理 |
| SEA | Security Administrator | 安全管理员 |
| SEA | Subsistence Expense Allowance | 生活费用津贴 |
| SEA | Side-Effect Analysis | 副作用分析 |
| SEA | Save the Environment Afghanistan | 拯救环境阿富汗 |
| SEA | State Education Authority | 国家教育局 |
| SEA | Survey on Economic Attitudes | 经济态度调查 |
| SEA | Seagate Enterprise Architecture | Seagate企业架构 |
| SEA | Southeast Asian (games) | 东南亚（游戏） |
| SEA | Standard Extended Attribute | 标准扩展属性 |
| SEA | State External Affairs | 国家对外事务 |
| SEA | Senior Enlisted Academy | 高级注册学院 |
| SEA | Systems Evaluation Area | 系统评估区域 |
| SEA | State/EPA Agreement | 国家/ EPA协议 |
| SEA | Southern and Eastern Africa | 南部和东部非洲 |
| SEA | SINR (Signal to Interference plus Noise Ratio) Exclusion Area | SINR（信号干扰加噪声比）排除区域 |
| SEA | Ship/Equipment, Alterations | 船/设备改造 |
| SEA | Site Electrical Assessment | 现场电气评估 |
| SEA | Significant Ecological Area | 重要生态区 |