| LDA | Lithium diisopropylamide | 二异丙基氨基锂 |
| LDA | Louisiana Dental Association | 路易斯安那州牙科协会 |
| LDA | Learning Disabilities Association | 学习障碍协会 |
| LDA | Louisiana Dietetic Association | 路易斯安那州饮食协会 |
| LDA | Lyme Disease Association | 莱姆病协会 |
| LDA | London Dressage Association (Canada) | 伦敦盛装舞步协会（加拿大） |
| LDA | Lutheran Deaconess Association | 路德会女执事协会 |
| LDA | London Development Agency | 伦敦开发署 |
| LDA | Laser Doppler Anemometer | 激光多普勒风速仪 |
| LDA | LibertÀ d'Azione (Freedom of Action Party, Italy) | LibertÀ d'Azione (Freedom of Action Party, Italy) |
| LDA | Locally Distributed Asynchronous (micro-pipeline) | 本地分布式异步（微管道） |
| LDA | Light Double Action (semiautomatic pistols) | 轻型双动（半自动手枪） |
| LDA | Lead Development Agent/Agency | 代理机构率先发展 |
| LDA | Lahore Development Authority | 拉合尔开发局 |
| LDA | Launch Deployment Assembly | 启动部署程序集 |
| LDA | Lucknow Development Authority (India) | 勒克瑙发展局（印度） |
| LDA | Loring Development Authority (civilian reuse project) | 洛林发展局（民用再利用项目） |
| LDA | Local Density Approximation | 局部密度近似 |
| LDA | Landing Distance Available | 现有着陆滑跑距离 |
| LDA | Local Delivery Agent | 本地交付代理 |
| LDA | Local Director Acceleration | 本地主管加速 |
| LDA | Landing Directional Aid | 着陆方向辅助 |
| LDA | Legal Drinking Age | 法定饮酒年龄 |
| LDA | linear displacement analysis | 线性位移分析 |
| LDA | l-leucine-n,n'-diacetic acid | l-亮氨酸-n,n'-二醋酸 |
| LDA | Lightning Double Action | 闪电双作用 |
| LDA | Laser Doppler Anemometry | 激光多普勒风速仪 |
| LDA | Localizer Directional Aid | 定位器定向辅助 |
| LDA | Logic Design Automation | 逻辑设计自动化 |
| LDA | Length Distance Angle | 长度距离角度 |
| LDA | Lyari Development Authority | Lyari开发局 |
| LDA | Low Dose Allergens | 低剂量过敏原 |
| LDA | Los Dias Ahora | 洛斯·迪亚斯·阿霍拉 |
| LDA | Malda, India | 印度马尔达 |
| LDA | Localizer Direction Aid | 定位器定向辅助装置 |
| LDA | Least Desired Approach | 最不期望的方法 |
| LDA | Light Double Action | 轻双作用 |
| LDA | Leukocyte Differentiation Antigen | 白细胞分化抗原 |
| LDA | Local Dependent Address | 本地相关地址 |
| LDA | Loss-Delay-Based Adjustment | 基于损失延迟的调整 |
| LDA | Lambda Delta Alpha (fraternity) | Lambda Delta Alpha（兄弟会） |
| LDA | Limitada (Portuguese; similar to Limited Liability Company) | Limitada（葡萄牙语；类似于有限责任公司） |
| LDA | Lightweight Decontamination Apparatus | 轻型去污装置 |
| LDA | lithium diisopropyl amide | 二异丙基酰胺锂 |
| LDA | Liga Deportiva Alajuelense (Costa Rica football club) | 阿拉胡埃伦塞足球俱乐部（哥斯达黎加足球俱乐部） |
| LDA | Late-Deafened Adults | 晚期失聪成年人 |
| LDA | limiting-dilution assay | 极限稀释试验 |
| LDA | Location-Dependent Address | 位置相关地址 |
| LDA | leucocyte-dependent cytotoxic antibody | 白细胞依赖性细胞毒性抗体 |
| LDA | left dorso-anterio | 左前背 |
| LDA | Leadership Development Academy | 领导力发展学院 |
| LDA | lymphocyte-dependent antibody | 淋巴细胞依赖性抗体 |
| LDA | Launch and Deployment Authority | 启动和部署权限 |
| LDA | Limited Depository Account | 有限存管账户 |
| LDA | Local Directory Assistance | 本地目录协助 |
| LDA | Line Driver Amplifier | 线路驱动器放大器 |
| LDA | Low Density Area | 低密度区域 |
| LDA | Large Diameter Auger | 大直径螺旋钻 |
| LDA | Locate Drum Address | 磁鼓地址定位 |
| LDA | Late Discovery Adoptee | 晚发现被采纳者 |
| LDA | Latin Dance Australia | 拉丁舞澳大利亚 |
| LDA | Lower Dog Auxiliary | 下挡块辅助 |
| LDA | Load Accumulator (6502 processor instruction) | 加载累加器（6502处理器指令） |
| LDA | Leadership Analysis (CIA office) | 领导力分析（中央情报局办公室） |
| LDA | Left Displacement of Abomasum | 皱胃左移位 |
| LDA | Localizer (Type) Directional Aid | 定位器（类型）方向辅助 |
| LDA | Lithographic Dipole Antenna | 光刻偶极子天线 |
| LDA | Linear Diode Array | 线性二极管阵列 |
| LDA | Local Deliverability Area (power industry) | 当地可交付区域（电力行业） |
| LDA | Linear Discriminant Analysis (statistical method) | 线性判别分析（统计方法） |
| LDA | Left Displaced Abomasum | 左移位皱胃 |
| LDA | Linear Danger Area (military) | 线性危险区域（军事） |
| LDA | Local Data Area | 本地数据区 |
| LDA | Limited Deployment Authorization | 有限部署授权 |
| LDA | Logical Device Address | 逻辑设备地址 |